Acquisition method (AMC)
3
FSC 4820 × SEAT,VALVE
SEAT,VALVE
4820-01-029-2783 FSC 4820
NSN 4820-01-029-2783 (also written 4820010292783; NIIN 01-029-2783) is a seat, valve in Federal Supply Class 4820, Valves, Nonpowered. 10 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 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 |
|---|---|
| FLANGE DIAMETER ABKK | INCHES MINIMUM 5.250 AND INCHES MAXIMUM 5.251 |
| BODY OUTSIDE DIAMETER ADAR | INCHES NOMINAL 4.180 |
| BODY INSIDE DIAMETER ADAS | INCHES MINIMUM 2.578 AND INCHES MAXIMUM 2.588 |
| SEAT RADIUS AJFZ | INCHES NOMINAL 0.180 |
| FLANGE SEAT TO DISK END HEIGHT AJRF | INCHES NOMINAL 1.620 |
| UNDER FLANGE HEIGHT AJRM | INCHES NOMINAL 4.380 |
| SEATING SURFACE SHAPE CQKM | RADIAL |
| MATERIAL MATT | OVERALL STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-S-763,CLASS 410 QQ-S-763 |
| 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 |
|---|---|---|
| 4008G83 PIECE 3 | 01289 | GENERAL ELECTRIC COMPANY |
| 4008G83 PIECE 3 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND |
| 4008G83-003 | 01289 | GENERAL ELECTRIC COMPANY |
| 4008G83-003 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND |
| 4008G83-3 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND |
| 6016038-003 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND |
| 6016038-003 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS |
| 781E733P38 | 01289 | GENERAL ELECTRIC COMPANY |
| 781E733P38 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND |
| 781E733P38 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV 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
$8,018.00
Purchases
1
Total spend
$32,072
Sep 22, 2026
Last purchased
2 · 2.0/yr
Purchase records
$64,144
Total demand
$8,018.00
Latest unit price
Purchase history
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 |
|---|---|---|---|---|
| Sep 22, 2026 | SPE7M126V146A ↗ | — | — | $32,072 |
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.
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
CAGE 6SHS1
last award Sep 2026
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 GENERAL ELECTRIC COMPANY
no award yet
no awards on record
Listed source SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND DIV SGT DRESSER-RAND
no award yet
no awards on record
Listed source CAGE 6SHS1 won the only award on record. CAGE 6SHS1 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M4-26-T-317T | Aug 7, 2026 | Aug 17, 2026 | 4 | 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: 2026-10-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SEAT,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-029-2783/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-029-2783/