Acquisition method (AMC)
3
FSC 4820 × PISTON,VALVE
PISTON,VALVE
4820-01-312-1952 FSC 4820
NSN 4820-01-312-1952 (also written 4820013121952; NIIN 01-312-1952) is a piston, valve in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 4 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE7M4-27-T-1888 | 2 | Closes in 2d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
L
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC L: annual buy value is below the screening threshold. 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 |
|---|---|
| MATERIAL MATT | STEEL CORROSION RESISTING |
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 |
|---|---|---|
| 11025020 | 88663 | DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE |
| 300007AC1 | 0AT62 | SIEMENS ENERGY, INC. DBA DRESSER-RAND |
| 300007AC1 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS |
| 300007AC1 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS |
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
$1,329.20
Purchases
2
Total spend
$9,294
Nov 3, 2026
Last purchased
4 · 4.0/yr
Purchase records
$18,589
Total demand
$1,329.20
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Nov 3, 2026 | 2 | $1,329.20 | $2,658 | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. (7Y333) | Unknown | Source ↗ |
| Nov 2, 2026 | 6 | $1,106.00 | $6,636 | 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 |
|---|---|---|---|---|
| Nov 2, 2026 | SPE7M427V0593 ↗ | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. | — | $6,636 |
| Nov 3, 2026 | SPE7M427V0621 ↗ | ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. | — | $2,658 |
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.
Time from solicitation to award
How long does a buy take from posting to award? One bar per past award that matches a solicitation.
- Open for quotes
- Closed, awaiting award
The typical buy took 13 days from posting to award.
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 Nov 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 INGERSOLL-RAND OPNS 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 2 of the last 2 awards. ARGO TURBOSERVE CORPORATION DIV ARGO TURBOSERVE CORP. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M4-27-T-1888 | Oct 28, 2026 | Nov 9, 2026 | 2 | Open | View at DIBBS → |
| SPE7M4-27-T-0840 | Oct 13, 2026 | Oct 23, 2026 | 6 | 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 13, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "PISTON,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-312-1952/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-312-1952/