Acquisition method (AMC)
3
FSC 4820 × SEAT,VALVE
SEAT,VALVE
4820-00-083-4224 FSC 4820
NSN 4820-00-083-4224 (also written 4820000834224; NIIN 00-083-4224) is a seat, 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 | |
|---|---|---|---|
| SPE7MC-27-T-1616 | 2 | Closes in 9d | 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 |
|---|---|
| FLANGE DIAMETER ABKK | INCHES NOMINAL 0.934 |
| BODY OUTSIDE DIAMETER ADAR | INCHES NOMINAL 0.827 |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 0.520 |
| FLANGE SEAT TO DISK END HEIGHT AJRF | INCHES NOMINAL 0.212 |
| UNDER FLANGE HEIGHT AJRM | INCHES NOMINAL 0.141 |
| SEAL ACCOMMODATION TYPE AJSH | BEADED |
| HARDNESS RATING CQFM | OVERALL ROCKWELL C MINIMUM 58.0 AND ROCKWELL C MAXIMUM 62.0 |
| SEATING SURFACE SHAPE CQKM | FLAT |
| MATERIAL MATT | OVERALL STEEL |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| 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 |
|---|---|---|
| 19357 | 0UES3 | MID-AMERICA AEROTECH, LLC |
| 19357 | 19156 | MOOG INC DIV MOOG INC., SPACE AND DEFENSE - SALT LAKE CITY |
| 19357 | 79294 | E-SYSTEMS INC MONTEK DIV FLUID CONTROLS OPNS |
| 19357 | 94697 | MOOG 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 27, 2026
Last purchased
1 · 1.0/yr
Purchase records
$660.00
Total demand
$660.00
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 27, 2026 | SPE4A627P3893 ↗ | BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC | — | $660.00 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 3 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
BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC
last award Oct 2026
E-SYSTEMS INC MONTEK DIV FLUID CONTROLS OPNS
no award yet
no awards on record
Listed source MID-AMERICA AEROTECH, LLC
no award yet
no awards on record
Listed source MOOG INC
no award yet
no awards on record
Listed source MOOG INC DIV MOOG INC., SPACE AND DEFENSE - SALT LAKE CITY
no award yet
no awards on record
Listed source BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC won the only award on record. BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-27-T-1616 | Nov 6, 2026 | Nov 16, 2026 | 2 | Open | View at DIBBS → |
| SPE7M1-27-T-1607 | Oct 27, 2026 | Nov 6, 2026 | 1 | Expired | View at DIBBS → |
| SPE7M1-27-T-0211 | Oct 7, 2026 | Oct 19, 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: 2026-10-28.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SEAT,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-083-4224/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-083-4224/