Acquisition method (AMC)
1
FSC 4820 × SEAT,VALVE
SEAT,VALVE
4820-01-423-7663 FSC 4820
NSN 4820-01-423-7663 (also written 4820014237663; NIIN 01-423-7663) is a seat, valve in Federal Supply Class 4820, Valves, Nonpowered. 8 manufacturer part numbers from 3 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. 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 0.296 |
| BODY OUTSIDE DIAMETER ADAR | INCHES NOMINAL 1.435 |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 0.813 |
| END ITEM IDENTIFICATION AGAV | SEAWOLF CLASS SSN |
| SEAT RADIUS AJFZ | INCHES NOMINAL 0.375 |
| SEATING SURFACE SHAPE CQKM | RADIAL |
| SPECIAL FEATURES FEAT | 6 GROOVES; FOR 0.750 IN. AND 1.000 IN. BALL VALVE; MATERIAL URETHANE |
| MATERIAL MATT | SEAT PLASTIC |
| 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 |
|---|---|---|
| 218021462 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 2643-820-23 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT |
| 2643-820-23 FN A6 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT |
| 264382023-A6 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT |
| 6758076 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 801-6758076 ASSEMBLY 1A FIND 6 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| DF331794 | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING |
| DF331794 ASSEMBLY 1A FIND 6 | 43689 | HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING |
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
$281.80
Purchases
1
Total spend
$3,945
Oct 29, 2026
Last purchased
2 · 2.0/yr
Purchase records
$7,890
Total demand
$281.80
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 29, 2026 | 14 | $281.80 | $3,945 | ECHELON SUPPLY AND SERVICE, INC. (61125) | 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 29, 2026 | SPE7MC27V0387 ↗ | ECHELON SUPPLY AND SERVICE, INC. | — | $3,945 |
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
ECHELON SUPPLY AND SERVICE, INC.
last award Oct 2026
ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT
no award yet
no awards on record
Listed source HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING
no award yet
no awards on record
Listed source NAVAL SEA SYSTEMS COMMAND
no award yet
no awards on record
Listed source ECHELON SUPPLY AND SERVICE, INC. won the only award on record. ECHELON SUPPLY AND SERVICE, INC. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-27-T-1049 | Oct 23, 2026 | Nov 2, 2026 | 14 | 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 23, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-01.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SEAT,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-423-7663/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-423-7663/