Acquisition method (AMC)
3
FSC 4820 × SEAT,VALVE
SEAT,VALVE
4820-01-251-5689 FSC 4820
NSN 4820-01-251-5689 (also written 4820012515689; NIIN 01-251-5689) is a seat, valve in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 2 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)
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 |
|---|---|
| OVERALL HEIGHT ABKW | INCHES NOMINAL 0.625 |
| BODY OUTSIDE DIAMETER ADAR | INCHES NOMINAL 8.250 |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 6.250 |
| SEATING SURFACE SHAPE CQKM | O-RING |
| SPECIAL FEATURES FEAT | NOTE: THIS MATERIAL IS IN ACCORDANCE WITH 0948-LP0-04507010; THE VALVE IS AN ASSEMBLY MIC LEVEL ONE; REF ENTIRE ASSY PER 4820-01-245-5438 |
| MATERIAL MATT | SEAT STEEL |
| 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 |
|---|---|---|
| 04113329 | 5XH59 | FLOWSERVE US, INC. DBA AUTOMAX ACTUATORS DIV FLOW CONTROL DIVISION |
| 2536-5 | 85130 | FLOWSERVE CORPORATION DIV FLOWSERVE US INC |
| 2536-5 PIECE 28 | 85130 | FLOWSERVE CORPORATION DIV FLOWSERVE US INC |
| 2536-5-28 | 85130 | FLOWSERVE CORPORATION DIV FLOWSERVE US 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
—
Purchases
0
Total spend
—
Oct 6, 2026
Last purchased
1 · 1.0/yr
Purchase records
$63,627
Total demand
$63,627
Latest award total
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Oct 6, 2026 | SPE7M527P0064 ↗ | KAMPI COMPONENTS CO INC | — | $63,627 |
Demand history
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
KAMPI COMPONENTS CO INC
last award Oct 2026
FLOWSERVE CORPORATION DIV FLOWSERVE US INC
no award yet
no awards on record
Listed source FLOWSERVE US, INC. DBA AUTOMAX ACTUATORS DIV FLOW CONTROL DIVISION
no award yet
no awards on record
Listed source KAMPI COMPONENTS CO INC won the only award on record. KAMPI COMPONENTS CO INC won without being a listed source.
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. "SEAT,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-251-5689/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-251-5689/