Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-560-9281 FSC 4820
NSN 4820-01-560-9281 (also written 4820015609281; NIIN 01-560-9281) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 7 manufacturer part numbers from 4 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
D
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. 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 |
|---|---|
| END ITEM IDENTIFICATION AGAV | NEW CONSTRUCTION LPD18,19,20 |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 131.0 TO 154.0 |
| SPECIAL FEATURES FEAT | END CONNECTIONS-SILBRAZE UNIONS. SIZE-0.50IN INLET X 1.00IN OUTLET |
| MATERIAL MATT | BODY BRONZE |
| MEDIA FOR WHICH DESIGNED MEDA | SINGLE RESPONSE PROPANE |
| STYLE DESIGNATOR STYL | — |
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 |
|---|---|---|
| 12428157 | 0AT62 | SIEMENS ENERGY, INC. DBA DRESSER-RAND |
| 12428157 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS |
| 12428157 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS |
| 12428157 | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE |
| 12428157TM | 0AT62 | SIEMENS ENERGY, INC. DBA DRESSER-RAND |
| 12428157TM P/N 12428157 | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE |
| PL12534806 SH 4 NO. 21 | 93236 | DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE |
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
$11,359.35
Purchases
1
Total spend
$11,359
Oct 7, 2026
Last purchased
2 · 2.0/yr
Purchase records
$22,719
Total demand
$11,359.35
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 7, 2026 | 1 | $11,359.35 | $11,359 | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. (7Y333) | Unknown | Source ↗ |
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 |
|---|---|---|---|---|
| Oct 7, 2026 | SPE7MC27V0111 ↗ | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. | — | $11,359 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 2 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
- Solicitation posted
- Award made
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
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
ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP.
last award Oct 2026
CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS
no award yet
no awards on record
Listed source CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS
no award yet
no awards on record
Listed source DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE
no award yet
no awards on record
Listed source SIEMENS ENERGY, INC. DBA DRESSER-RAND
no award yet
no awards on record
Listed source ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. won the only award on record. ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-308S | Sep 30, 2026 | Oct 13, 2026 | 1 | Expired | View at DIBBS → |
| SPE7MC-26-T-256Q | Sep 11, 2026 | Sep 21, 2026 | 1 | 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 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-560-9281/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-560-9281/