Acquisition method (AMC)
1
FSC 4820 × VALVE,STOP-CHECK
VALVE,STOP-CHECK
4820-00-243-9800 FSC 4820
NSN 4820-00-243-9800 (also written 4820002439800; NIIN 00-243-9800) is a valve, stop-check in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. The codes describe the item's status on record, not any one solicitation. What the codes mean
What it is — can you make it?
Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.
Specifications
From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.
| Requirement | Value |
|---|---|
| BOLT HOLE QUANTITY AECS | 12 |
| TEST DATA DOCUMENT TEST | SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). 03950-ACID882032962 AND DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) 80064-5000-S4824-C1385541 |
| BOLT HOLE NOMINAL DIAMETER CWCQ | ALL ENDS INCHES 0.688 |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 425.0 |
| STYLE DESIGNATOR STYL | — |
| MATERIAL MATT | FLOW CONTROL DEVICE NICKEL ALLOY |
| VALVE OPERATION METHOD AQLR | MANUAL |
| FLANGE SHAPE ARKN | ALL ENDS ROUND WITH HOLES |
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| MOUNTING POSITION BBJX | HORIZONTAL |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | STEM FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288,CO- B QQ-N-288 |
| FLOW CONTROL DEVICE ADQU | DISK |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 0.560 |
| BONNET ATTACHMENT METHOD ADST | BOLTED |
| RENEWABLE SEAT RING TYPE ADZH | THREADED |
| FACE TO FACE DISTANCE CWCF | INCHES 17.000 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 100.0 |
| MATERIAL MATT | SEAT NICKEL ALLOY |
| MATERIAL MATT | STEM NICKEL ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-C-390,ALLOY D4 QQ-C-390 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288,CO- B QQ-N-288 |
| FEATURES PROVIDED CBBL | BONNET PACKING |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | ALL ENDS INCHES 8.875 |
| FLANGE FACE DESIGN CWDF | ALL ENDS PLAIN |
| MEDIA FOR WHICH DESIGNED MEDA | SINGLE RESPONSE WATER-OIL-GAS |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 10.125 |
| VALVE SIZE CCFG | INCHES 6.000 |
| BONNET TYPE ADSR | OUTSIDE SCREW-YOKE |
Manufacturer part numbers
Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.
| Part number | CAGE | Manufacturer |
|---|---|---|
| 803-1385541 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 803-1385541-063 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 803-1385541-063AF | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| CD-54791 ITEM 1 | 90664 | WALWORTH CO MARINE DIV |
What it pays — so you can quote
The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.
Latest unit price
$7,296.16
Purchases
1
Total spend
$124,035
Sep 10, 2026
Last purchased
2 · 2.0/yr
Purchase records
$248,069
Total demand
$7,296.16
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 10, 2026 | 17 | $7,296.16 | $124,035 | MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (76364) | Unknown | Source ↗ |
Related contract actions
Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 10, 2026 | SPE7MC26P3543 ↗ | MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC | — | $124,035 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 2 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC
last award Sep 2026
NAVAL SHIP SYSTEMS COMMAND
no award yet
no awards on record
Listed source WALWORTH CO MARINE DIV
no award yet
no awards on record
Listed source MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC won the only award on record. MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-239C | Aug 28, 2026 | Sep 8, 2026 | 56 | Expired | View at DIBBS → |
| SPE7MC-26-T-202U | Aug 20, 2026 | Aug 31, 2026 | 17 | Expired | View at DIBBS → |
Open RFQs on DIBBS → DIBBS award history ↗
About this data
- Unit prices: DLA DIBBS award records — every row links to its government record.
- AMSC: latest observed value from DIBBS solicitation history as of Oct 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-23.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,STOP-CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-243-9800/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-243-9800/