Acquisition method (AMC)
3
FSC 4820 × SUPPORT SEAT
SUPPORT SEAT
4820-01-030-5231 FSC 4820
NSN 4820-01-030-5231 (also written 4820010305231; NIIN 01-030-5231) is a support seat in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 1 supplier 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-26-T-242G | 5 | Closes in 2d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
A
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC A: the government's right to use the technical data it holds is in doubt. 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 |
|---|---|
| END ITEM IDENTIFICATION AGAV | MAROTTA VALVE CORP PRESSURE REDUCING VALVE P/N 280038 |
| GENERAL CHARACTERISTICS ITEM DESCRIPTION TEXT | MATERIAL CORROSION RESISTING STEEL,OD 0.561 IN.,FLANGE OD 0.678 IN.,ID 0.377 IN.,THICKNESS OVERALL 0.161 IN.,FLANGE THICKNESS 0.066 IN.,FACE GROOVE OD 0.527 IN.,FACE GROOVE ID 0.430 IN.,FACE GROOVE DEPTH 0.073 IN. |
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 |
|---|---|---|
| 188478-0030 | 99657 | MAROTTA CONTROLS INC |
| 188478-30 | 99657 | MAROTTA CONTROLS INC |
| 280038 | 99657 | MAROTTA CONTROLS INC |
| 280038ITEM17 | 99657 | MAROTTA CONTROLS 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
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
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.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-26-T-242G | Aug 31, 2026 | Nov 9, 2026 | 5 | Open | View at DIBBS → |
| SPE7MC-26-T-201X | Aug 20, 2026 | Aug 31, 2026 | 3 | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SUPPORT SEAT." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-030-5231/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-030-5231/