AMSC / AMC
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FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-032-5699
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
Restricted — approved sources only, based on the latest AMSC/AMC on record.
Competition
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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 |
|---|---|
| THREAD CLASS AAJD | 3A |
| THREAD DIRECTION AAJF | FIRST END RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | POPPET |
| DISK LOADING METHOD ADSU | SPRING |
| VALVE DISCHARGE FLOW RATE ADSY | CUBIC FEET PER MINUTE 20.0 |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 280.0 |
| MINIMUM OPERATING TEMP AEQJ | FAHRENHEIT -40.0 |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | FIRST END THREADED EXTERNAL TUBE |
| VALVE SIZE CCFG | INCHES 0.250 |
| NOMINAL THREAD SIZE CQJX | FIRST END INCHES 0.438 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 200.0 |
| OPENING PRESSURE SETTING CSDC | POUNDS PER SQUARE INCH 10.0 |
| MATERIAL MATT | OVERALL ALUMINUM ALLOY 2024 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY FED SPEC SINGLE MATERIAL RESPONSE QQ-A-250 TO 4,ALLOY 2024,T351 QQ-A-250 |
| MEDIA FOR WHICH DESIGNED MEDA | FIFTH RESPONSE HELIUM |
| MEDIA FOR WHICH DESIGNED MEDA | FOURTH RESPONSE FUEL/OIL, HYDROCARBON |
| MEDIA FOR WHICH DESIGNED MEDA | THIRD RESPONSE AMMONIA, GASEOUS |
| MEDIA FOR WHICH DESIGNED MEDA | FIRST RESPONSE AIR |
| MEDIA FOR WHICH DESIGNED MEDA | SECOND RESPONSE ALCOHOL, ETHYL |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | FIRST END UNIFIED NATIONAL JOINT FINE (UNJF) |
| FURNISHED ITEMS AND QUANTITY TMQY | DEFLECTOR CAP 1 |
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 |
|---|---|---|
| 11437984 | 18876 | US ARMY AVIATION AND MISSILE COMMAND |
| 584516 | 3B150 | RAYTHEON COMPANY DBA RAYTHEON CO |
| 584516 | 49956 | RAYTHEON COMPANY DIV CORP |
| D559A-4D-10 | 91816 | CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC |
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
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Purchases
0
Total spend
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Last purchased
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Purchase records
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Total demand
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Latest award total
Price history
What the government paid per unit
Fewer than two priced purchases on record — see the table below.
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-26-T-184M | Aug 7, 2026 | Aug 20, 2026 | 24 | 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.
- Contract action totals: USAspending, context only.
- Full methodology →