AMSC / AMC
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FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-339-7822
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE7M2-26-U-0438 | 33 | Closes today | Bid → |
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 | 3B |
| THREAD CLASS AAJD | 3A |
| THREAD DIRECTION AAJF | ALL ENDS RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | POPPET |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 275.0 |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | SECOND END THREADED INTERNAL BOSS |
| CONNECTION TYPE AWLS | FIRST END THREADED EXTERNAL TUBE |
| THREAD QUANTITY PER INCH CMLP | 20 |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 680.0 TO 1210.0 |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 0.438 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 2500.0 |
| SEAT ANGLE CQRB | FIRST END DEGREES 37.0 |
| OPENING PRESSURE SETTING CSDC | POUNDS PER SQUARE INCH 1150.0 |
| MATERIAL MATT | BODY ALUMINUM ALLOY 2024 |
| MEDIA FOR WHICH DESIGNED MEDA | FOURTH RESPONSE NITROGEN, GASEOUS |
| MEDIA FOR WHICH DESIGNED MEDA | THIRD RESPONSE OIL, HYDRAULIC |
| MEDIA FOR WHICH DESIGNED MEDA | FIRST RESPONSE AIR |
| MEDIA FOR WHICH DESIGNED MEDA | SECOND RESPONSE HELIUM |
| MEDIA FOR WHICH DESIGNED MEDA | FIFTH RESPONSE WATER, FRESH |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | FIRST END UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD SERIES DESIGNATOR THSD | SECOND END UNF |
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 |
|---|---|---|
| 5159A-4TB-1150 | 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 | |
|---|---|---|---|---|---|
| SPE7M2-26-U-0438 | Aug 28, 2026 | Sep 11, 2026 | 33 | Open | 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 →