Acquisition method (AMC)
1
FSC 4820 × VALVE,STOP-CHECK
VALVE,STOP-CHECK
4820-00-188-8262 FSC 4820
NSN 4820-00-188-8262 (also written 4820001888262; NIIN 00-188-8262) is a valve, stop-check in Federal Supply Class 4820, Valves, Nonpowered. 9 manufacturer part numbers from 5 suppliers are on record. No purchases are on record yet.
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 |
|---|---|
| CONNECTION TYPE AWLS | ALL ENDS FLANGE |
| BOLT HOLE QUANTITY AECS | 6 |
| MOUNTING POSITION BBJX | HORIZONTAL |
| BOLT HOLE NOMINAL DIAMETER CWCQ | ALL ENDS INCHES 0.562 |
| MATERIAL MATT | BODY COPPER ALLOY 922 |
| FLANGE SHAPE ARKN | ALL ENDS ROUND WITH HOLES |
| VALVE OPERATION METHOD AQLR | MANUAL |
| NOMINAL OUTSIDE DIAMETER CWCD | ALL ENDS INCHES 6.125 |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 425.0 |
| BONNET TYPE ADSR | OUTSIDE SCREW-YOKE |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288,CO- B QQ-N-288 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | STEM FED SPEC SINGLE MATERIAL RESPONSE QQ-N-288, CO- B QQ-N-288 |
| MEDIA FOR WHICH DESIGNED MEDA | SINGLE RESPONSE WATER-OIL-GAS |
| 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 |
| FACE TO FACE DISTANCE CWCF | INCHES 9.000 |
| NOMINAL THICKNESS CWCK | ALL ENDS INCHES 0.500 |
| SPECIAL FEATURES FEAT | VALVE SIZE 2.500 IN. |
| STYLE DESIGNATOR STYL | — |
| 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-CID882032969 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 |
| VALVE SIZE CCFG | INCHES 2.500 |
| BOLT CIRCLE NOMINAL DIAMETER CWCT | ALL ENDS INCHES 5.000 |
| FLANGE FACE DESIGN CWDF | ALL ENDS PLAIN |
| BONNET ATTACHMENT METHOD ADST | BOLTED |
| RENEWABLE SEAT RING TYPE ADZH | THREADED |
| MATERIAL MATT | FLOW CONTROL DEVICE NICKEL ALLOY |
| FLOW CONTROL DEVICE ADQU | DISK |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 100.0 |
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 |
|---|---|---|
| 1022-006H-2.50IN CDS1022006K0001 | 76364 | MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC |
| 388F6024H | 63686 | THE WALWORTH COMPANY |
| 4820PL1341472 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 728287 | 63686 | THE WALWORTH COMPANY |
| 803-1385541 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 803-1385541-023 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| CD-54791 | 90664 | WALWORTH CO MARINE DIV |
| CD-54791 ITEM 10 | 90664 | WALWORTH CO MARINE DIV |
| S4824-1385541 2 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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
—
Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
—
Total demand
—
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
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.
No related contract actions on record.
Demand history
Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-27-T-0924 | Oct 23, 2026 | Nov 2, 2026 | 67 | 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 23, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,STOP-CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-188-8262/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-188-8262/