Acquisition method (AMC)
3
FSC 4820 × SPRING ASSEMBLY,VALVE
SPRING ASSEMBLY,VALVE
4820-01-051-8464 FSC 4820
NSN 4820-01-051-8464 (also written 4820010518464; NIIN 01-051-8464) is a spring assembly, valve in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 1 supplier 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)
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 | WASP CLASS LHD, SIRIUS CLASS T-AFS 8, FORRESTAL CLASS CV, TARAWA CLASS LHA, BLUE RIDGE CLASS LCC-19. HIGH PRESSURE AIR SYSTEM. SUBMARINE ATMOSPHERE CONTROL AND COMPRESSED AIR/GAS |
| CRITICALITY CODE JUSTIFICATION CRTL | FEAT |
| SPECIAL FEATURES FEAT | WEAPON SYSTEM ESSENTIAL |
| GENERAL CHARACTERISTICS ITEM DESCRIPTION TEXT | LENGTH 1.850 IN;80-125 PSI CRACKING PRESSURE |
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 |
|---|---|---|
| 233101 | 99657 | MAROTTA CONTROLS INC |
| 233101 PART 2331 | 99657 | MAROTTA CONTROLS INC |
| 233101-0003 | 99657 | MAROTTA CONTROLS INC |
| 233101-3 | 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
$4,089.00
Purchases
1
Total spend
$28,623
Oct 16, 2026
Last purchased
2 · 2.0/yr
Purchase records
$57,246
Total demand
$4,089.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 16, 2026 | 7 | $4,089.00 | $28,623 | MAROTTA CONTROLS INC (99657) | 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 16, 2026 | SPE7M127V0565 ↗ | MAROTTA CONTROLS INC | — | $28,623 |
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
MAROTTA CONTROLS INC
last award Oct 2026
MAROTTA CONTROLS INC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-26-T-353S | Sep 16, 2026 | Sep 28, 2026 | 7 | 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: 2026-10-17.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SPRING ASSEMBLY,VALVE." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-051-8464/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-051-8464/