NSN Explorer

Open demand × Pumps and Compressors

Compressors and Vacuum Pumps FSC 4310

Open solicitations in Federal Supply Class 4310 — real requests for quote a supplier can bid on today, linked to the official DIBBS record for each one — plus the ones we've already recorded as they closed. Nothing here gets deleted when it expires: this category's demand history grows every time an RFQ closes.

30
Open solicitations
28
Closing within 7 days
212
Total open quantity
155
Tracked all-time (125 closed)

Open parts

4310-01-202-9243

PISTON ROD ASSEMBLY

Open · closes today 17 units

2 solicitations (1 open · 1 closed)

4310-25-125-1672

VALVE, UTBLAASING

Open · closes in 1d 1 units

1 solicitation (1 open · 0 closed)

4310-01-590-8447

HOUSING,AIR COMPRESSOR

Open · closes in 1d 4 units

1 solicitation (1 open · 0 closed)

4310-01-586-9898

PARTS KIT,COMPRESSOR

Open · closes in 1d 25 units

2 solicitations (1 open · 1 closed)

4310-01-680-8302

COMPRESSOR,RECIPROCATING

Open · closes in 1d 10 units

2 solicitations (1 open · 1 closed)

4310-01-231-2807

PARTS KIT,COMPRESSOR UNLOADER

Open · closes in 1d 55 units

1 solicitation (1 open · 0 closed)

4310-01-341-7179

SEPARATOR,SLUDGE,COMPRESSOR

Open · closes in 1d 2 units

1 solicitation (1 open · 0 closed)

4310-01-521-0489

FILTER ELEMENT,INTAKE AIR CLEANE

Open · closes in 1d 3 units

1 solicitation (1 open · 0 closed)

4310-01-616-6754

PLATE,COMPONENT MOUNTING,AIR COM

Open · closes in 1d 5 units

1 solicitation (1 open · 0 closed)

4310-15-015-7300

FILTER ASSEMBLY, FLUID

Open · closes in 1d 8 units

1 solicitation (1 open · 0 closed)

4310-01-535-7281

REPAIR KIT,COMPRESSOR

Open · closes in 1d 7 units

1 solicitation (1 open · 0 closed)

4310-01-455-4194

PISTON,COMPRESSOR

Open · closes in 3d 1 units

2 solicitations (1 open · 1 closed)

4310-01-480-5743

PARTS KIT,COMPRESSOR

Open · closes in 4d 6 units

1 solicitation (1 open · 0 closed)

4310-01-526-3961

HANDLE,DUCT,AIRCRAF

Open · closes in 4d 30 units

1 solicitation (1 open · 0 closed)

4310-01-365-2608

CYLINDER HEAD,COMPRESSOR

Open · closes in 4d 2 units

1 solicitation (1 open · 0 closed)

4310-01-477-9189

PISTON AND ROD ASSY

Open · closes in 4d 5 units

1 solicitation (1 open · 0 closed)

4310-01-368-7689

PISTON,COMPRESSOR

Open · closes in 4d 14 units

1 solicitation (1 open · 0 closed)

4310-01-584-3001

GAUGE OIL PRESSURE,

Open · closes in 7d 1 units

2 solicitations (1 open · 1 closed)

4310-01-648-7405

COMPRESSOR,RECIPROCATING

Open · closes in 7d 1 units

1 solicitation (1 open · 0 closed)

4310-12-332-1518

PISTON, COMPRESSOR

Open · closes in 7d 1 units

1 solicitation (1 open · 0 closed)

4310-01-613-2937

FILTER ELEMENT,INTAKE AIR CLEANE

Closed · last Sep 8, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-692-9279

MODIFICATION KIT,PUMPS AND COMPR

Closed · last Sep 8, 2026 — units

2 solicitations (0 open · 2 closed)

4310-01-052-2461

FILTER ELEMENT,INTAKE AIR CLEANE

Closed · last Sep 4, 2026 — units

2 solicitations (0 open · 2 closed)

4310-01-278-8708

SLEEVE SEAL

Closed · last Sep 4, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-023-2807

CYLINDER SLEEVE

Closed · last Sep 3, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-064-1952

VALVE,CARTRIDGE DISCHARGE

Closed · last Sep 3, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-456-2989

VALVE,REED

Closed · last Sep 3, 2026 — units

1 solicitation (0 open · 1 closed)

4310-12-355-5025

PISTON, COMPRESSOR

Closed · last Sep 3, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-526-6568

UNLOADER,MAGNETIC

Closed · last Sep 2, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-406-8872

DIAPHRAGM,PUMP,SPECIAL SHAPED

Closed · last Sep 1, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-274-9330

PISTON,PISTON GUIDE,RECIPROCATIN

Closed · last Aug 31, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-304-1441

RING,PISTON

Closed · last Aug 31, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-278-8756

LOCK,VALVE SPRING RETAINER

Closed · last Aug 31, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-510-0938

RING,PISTON

Closed · last Aug 31, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-667-4303

AIR CLEANER,INTAKE

Closed · last Aug 31, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-698-1688

COMPRESSOR,RECIPROCATING

Closed · last Aug 31, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-343-0889

PISTON,COMPRESSOR

Closed · last Aug 28, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-231-5386

PARTS KIT,COMPRESSOR

Closed · last Aug 28, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-587-1490

FILTER BODY,INTAKE AIR CLEANER

Closed · last Aug 28, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-509-0164

SUPPORT ASSY

Closed · last Aug 28, 2026 — units

2 solicitations (0 open · 2 closed)

4310-01-134-7659

PISTON,ROD AND SOCK

Closed · last Aug 28, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-539-4565

HOUSING,COMPRESSOR

Closed · last Aug 27, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-588-6419

REPAIR KIT,COMPRESSOR

Closed · last Aug 26, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-463-1152

FILTER ASSEMBLY,FLUID

Closed · last Aug 26, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-723-7502

PARTS KIT,VACUUM PUMP

Closed · last Aug 25, 2026 — units

3 solicitations (0 open · 3 closed)

4310-01-706-3848

PISTON,COMPRESSOR

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-716-9147

VACUUM PUMP,ROTARY

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-375-3669

PARTS KIT,COMPRESSOR

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-248-1571

PISTON,COMPRESSOR

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-324-4319

RING,PISTON

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-723-4290

CYLINDER,RECIPROCATING COMPRESSO

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-260-0274

COUPLING COLLAR,COM

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-738-1731

COMPRESSOR UNIT,RECIPROCATING

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-004-3605

CYLINDER SLEEVE

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-148-9410

RING,PISTON

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-281-7460

PISTON,COMPRESSOR

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-383-6444

CELL,SENSOR,ACID,COMPRESSION MON

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-420-3877

CYLINDER HEAD,COMPRESSOR

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-508-0184

AIR CLEANER,INTAKE

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-480-3596

CYLINDER,RECIPROCATING COMPRESSO

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-520-8595

FILTER ELEMENT,INTAKE AIR CLEANE

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-696-4894

COMPRESSOR UNIT,RECIPROCATING

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-663-6242

VALVE,REED

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-705-3922

COMPRESSOR UNIT,RECIPROCATING

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-726-2623

RING,PISTON

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-735-6148

BREATHER

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-25-150-0850

AIR CLEANER, INTAKE

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-559-2414

COMPRESSOR UNIT,RECIPROCATING

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-572-0336

PARTS KIT,PISTON ASSEMBLY,COMPRE

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-289-1658

ACTUATOR,DIAPHRAGM

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-535-9660

REPAIR KIT,COMPRESSOR

Closed · last Aug 21, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-466-8495

FILTER ELEMENT,INTAKE AIR CLEANE

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-584-2985

SENDER OIL PRESSURE

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-665-0516

RING,PISTON

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-584-3052

HOOD ASSEMBLY FIBER

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-127-6519

RING SET,PISTON

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-368-0055

VALVE,REED

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-058-2165

VALVE ASSEMBLY,INLET

Closed · last Aug 20, 2026 — units

2 solicitations (0 open · 2 closed)

4310-01-552-9871

COMPRESSOR,RECIPROCATING

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-706-7565

CYLINDER SLEEVE

Closed · last Aug 19, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-477-9173

CYLINDER SLEEVE AND PISTON ASSEM

Closed · last Aug 19, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-711-7657

FILTER ASSEMBLY,FLUID

Closed · last Aug 19, 2026 — units

1 solicitation (0 open · 1 closed)

4310-12-355-5027

CYLINDER, RECIPROCATING

Closed · last Aug 18, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-275-0598

VALVE,FREE AIR UNLOADER

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-584-3047

EXHAUST PIPE ASSEMB

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-706-5263

PARTS KIT,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-706-2918

RING,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-140-8295

RING,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-201-8088

COMPRESSOR,RECIPROCATING

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-732-9135

VACUUM PUMP,ROTARY

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-732-9150

VACUUM PUMP,ROTARY

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-732-9143

VACUUM PUMP,ROTARY

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-00-370-3057

VALVE,REED

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-096-1353

RING SET,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-194-6831

RING SET,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-175-1421

CONNECTING ROD,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-367-6542

VALVE,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-357-7720

FILTER ELEMENT,INTAKE AIR CLEANE

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-460-7969

ADAPTER,SPECIAL

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-536-0967

COMPRESSOR,CENTRIFUGAL

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-562-8602

RING,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-524-7706

COMPRESSOR UNIT,RECIPROCATING

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-706-2926

RING,PISTON

Closed · last Aug 17, 2026 — units

2 solicitations (0 open · 2 closed)

4310-01-725-6463

FILTER ASSEMBLY,FLUID

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-641-6459

VACUUM PUMP UNIT,ROTARY

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-664-3440

VACUUM SENSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-706-4173

FOUR STAGE FLOAT

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-061-4762

VALVE,CONTROL

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-074-2349

YOKE,AIR INTAKE

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-519-3536

PARTS KIT,AIR FILTER

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-367-7607

CONNECTING ROD,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-407-0945

PARTS KIT,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-12-355-2632

RING, PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-485-7747

PIN,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-509-4708

REPAIR KIT,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-735-8675

VALVE,REED

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-123-0336

PISTON,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-560-8497

PARTS KIT,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-189-3218

RING,PISTON

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-312-2012

PISTON,COMPRESSOR

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-253-5997

SUPPORT ASSEMBLY,BEARING

Closed · last Aug 14, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-660-2143

SEPERATOR,MOISTURE

Closed · last Aug 14, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-681-4757

RING SET,PISTON

Closed · last Aug 14, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-248-1570

PISTON,COMPRESSOR

Closed · last Aug 14, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-592-9380

FILTER ELEMENT,INTAKE AIR CLEANE

Closed · last Aug 14, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-643-3362

DRY AIR MAINT KIT

Closed · last Aug 13, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-248-1573

PISTON,COMPRESSOR

Closed · last Aug 13, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-057-2995

PISTON,COMPRESSOR

Closed · last Aug 13, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-356-8696

COOLER,COMPRESSED AIR,COMPRESSOR

Closed · last Aug 7, 2026 — units

1 solicitation (0 open · 1 closed)

4310-01-407-1865

PLATE,COMPRESSOR

Closed · last Aug 6, 2026 — units

1 solicitation (0 open · 1 closed)

4310-12-355-2433

RING, PISTON

Closed · last Aug 6, 2026 — units

1 solicitation (0 open · 1 closed)