Acquisition method (AMC)
1
FSC 4820 × VALVE,CHECK
VALVE,CHECK
4820-00-482-8907 FSC 4820
NSN 4820-00-482-8907 (also written 4820004828907; NIIN 00-482-8907) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 12 manufacturer part numbers from 6 suppliers are on record. It was last purchased in Oct 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 |
|---|---|
| MAXIMUM OPERATING TEMP AEHZ | SECOND RESPONSE FAHRENHEIT 150.0 |
| CONNECTION TYPE AWLS | ALL ENDS UNTHREADED INTERNAL PIPE |
| MATERIAL MATT | FLOW CONTROL DEVICE NICKEL ALLOY R-405 |
| MATERIAL MATT | SEAT COPPER ALLOY 922 |
| SPECIAL FEATURES FEAT | 1.250 IN. VALVE SIZE,EACH VALVE SHALL HAVE THREEBUNA-N O-RINGS PACKED IN A BAG AND SECURELY ATTACHED WITH INSTRUCTIONS O-RINGS FOR OIL SERVICE ONLY |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | FLOW CONTROL DEVICE FED SPEC SINGLE MATERIAL RESPONSE QQ-N-281 QQ-N-281 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | SEAT FED SPEC SINGLE MATERIAL RESPONSE QQ-C-390,ALLOY D4 TO D TO QQ-C-390 |
| MEDIA FOR WHICH DESIGNED MEDA | FIRST RESPONSE STEAM |
| MEDIA FOR WHICH DESIGNED MEDA | SECOND RESPONSE WATER-OIL-GAS |
| 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-ACID NO.882037045 |
| VALVE SIZE CCFG | INCHES 1.250 |
| OPERATING PRESSURE CQQF | FIRST RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 200.0 |
| OPERATING PRESSURE CQQF | SECOND RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 400.0 |
| FLOW CONTROL DEVICE ADQU | DISK |
| MAXIMUM OPERATING TEMP AEHZ | FIRST RESPONSE FAHRENHEIT 425.0 |
| NOMINAL PIPE SIZE ACCOMMODATED AAAR | ALL ENDS INCHES 1.250 |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-C-390,ALLOY D4 TO D TO QQ-C-390 |
| MATERIAL MATT | BODY COPPER ALLOY 922 |
| MOUNTING POSITION BBJX | HORIZONTAL OR VERTICAL |
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 |
|---|---|---|
| 1B948 1 1-4IN | 14448 | HAMMOND VALVE CORP |
| 419WS1 1-4IN | 63686 | THE WALWORTH COMPANY |
| 426WS 1 1-4IN | 63686 | THE WALWORTH COMPANY |
| 4820PL1341628 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 4DP2080A1 1-4IN | 63686 | THE WALWORTH COMPANY |
| 4DP2080A1 1/4 I | 63686 | THE WALWORTH COMPANY |
| 803-1385721 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 803-1385721-6 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 810-1385721 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 810-1385721 1-1/4IN | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 810-1385721-6 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 810-1385721REVK | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
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
—
Oct 22, 2026
Last purchased
2 · 2.0/yr
Purchase records
$22,972
Total demand
$15,051
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 1, 2026 | SPE7M226V5057 ↗ | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS | — | $7,921 |
| Oct 22, 2026 | SPE7M027V0288 ↗ | BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS | — | $15,051 |
Demand history
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
BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS
last award Oct 2026
HAMMOND VALVE CORP
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source NAVAL INVENTORY CONTROL POINT MECHANICSBURG
no award yet
no awards on record
Listed source NAVAL SEA SYSTEMS COMMAND
no award yet
no awards on record
Listed source NAVAL SHIP SYSTEMS COMMAND
no award yet
no awards on record
Listed source THE WALWORTH COMPANY
no award yet
no awards on record
Listed source BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS won 2 of the last 2 awards. BEC SYSTEMS LLC DBA BEC MACHINE PRODUCTS won without being a listed source.
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.
- Data last refreshed: 2026-10-26.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,CHECK." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-482-8907/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-482-8907/