NSN Explorer

Open demand × Maintenance and Repair Shop Equipment

Torpedo Maintenance, Repair, and Checkout Specialized Equipment FSC 4921

Open solicitations in Federal Supply Class 4921 — 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.

4
Open solicitations
3
Closing within 7 days
71
Total open quantity
22
Tracked all-time (18 closed)

Open parts

4921-01-361-7778

HOUSING AND PIN ASSEMBLY

Open · closes in 4d 14 units

1 solicitation (1 open · 0 closed)

4921-01-367-1012

RESET AND MODE SELECT TOOL

Open · closes in 7d 1 units

1 solicitation (1 open · 0 closed)

4921-01-578-5016

TEST SET SUBASSEMBLY,TORPEDO COM

Closed · last Aug 28, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-795-5818

COVER,PROTECT

Closed · last Aug 28, 2026 — units

2 solicitations (0 open · 2 closed)

4921-01-030-0263

FIXTURE,INSTALLATIO

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4921-01-029-3014

TIMER,CYCLE

Closed · last Aug 24, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-042-4415

ADAPTER,SWITCH

Closed · last Aug 24, 2026 — units

2 solicitations (0 open · 2 closed)

4921-01-245-5299

CRADLE,WEIGHING

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4921-01-481-2245

MODIFICATION KIT,MAINTENANCE AND

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-042-4407

WRENCH,TEE,IDLER NU

Closed · last Aug 20, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-435-8099

EXTRACTOR,INSERT SE

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-895-7026

COVER,VACUUM TEST

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-01-245-5298

IDLER SHAFT TOOL

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-431-4376

SUPPORT,WRENCH

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-01-167-3908

WRENCH ASSEMBLY,PROPELLER NUT

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-01-369-7809

TEST SET SUBASSEMBLY,TORPEDO COM

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-928-6519

TOOL ASSEMBLY,EXTRA

Closed · last Aug 17, 2026 — units

1 solicitation (0 open · 1 closed)

4921-00-042-4437

STRAP,GROUND

Closed · last Aug 11, 2026 — units

1 solicitation (0 open · 1 closed)