Acquisition method (AMC)
1
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-00-289-4140 FSC 4820
NSN 4820-00-289-4140 (also written 4820002894140; NIIN 00-289-4140) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 6 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 |
|---|---|
| FLOW CONTROL DEVICE ADQU | POPPET |
| DISK LOADING METHOD ADSU | SPRING |
| MATERIAL MATT | OVERALL ALUMINUM ALLOY |
| SURFACE TREATMENT SFTT | LOCATION NOT OTHERWISE SPECIFIED ANODIZE |
| CONNECTION STYLE AHNC | — |
| THREAD SERIES DESIGNATOR THSD | ALL ENDS UN |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 1.062 |
| MOUNTING FACILITY AZGM | THREADED FASTENER |
| STYLE DESIGNATOR STYL | — |
| THREAD QUANTITY PER INCH CMLP | 12 |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 2300.0 TO 3850.0 |
| THREAD CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | ALL ENDS RIGHT-HAND |
| FEATURES PROVIDED CBBL | PRESSURE TIGHT OUTLET SIDE |
| CONNECTION TYPE AWLS | ALL ENDS THREADED INTERNAL BOSS |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
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 |
|---|---|---|
| 4820PL1150175 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 6279-12CD | 59375 | RGI INC DBA RGI INC |
| AA12-06A | 00021 | BENBOW MFG CORP |
| AA12-06A | 49200 | PROSPERITY A DIV OF AMETEK INC |
| AN6279 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
| AN6279-12CD | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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.
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 Nov 1, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-289-4140/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-289-4140/