Acquisition method (AMC)
3
FSC 5331 × O-RING
O-RING
5331-01-579-3259 FSC 5331
NSN 5331-01-579-3259 (also written 5331015793259; NIIN 01-579-3259) is an o-ring in Federal Supply Class 5331, O-Rings. 3 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 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)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 |
|---|---|
| CROSS-SECTIONAL HEIGHT ADVN | INCHES MINIMUM 0.106 AND INCHES MAXIMUM 0.110 |
| CENTER HOLE DIAMETER ADYT | INCHES MINIMUM 4.375 AND INCHES MAXIMUM 4.377 |
| END ITEM IDENTIFICATION AGAV | MK 32 MOD 2, SLIDE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | INAVY: RING, STATIC BACKUP; DWG: RING, BACK-UP, STATIC |
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 |
|---|---|---|
| 4270P24351-0050 | 5F573 | GREENE TWEED & CO INC |
| 7251959 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 7251959 | 5F573 | GREENE TWEED & CO 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
$160.00
Purchases
1
Total spend
$4,320
Sep 28, 2026
Last purchased
2 · 2.0/yr
Purchase records
$8,640
Total demand
$160.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 28, 2026 | 27 | $160.00 | $4,320 | SEAL DYNAMICS LLC (5N582) | 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 |
|---|---|---|---|---|
| Sep 28, 2026 | SPE7L126V256V ↗ | SEAL DYNAMICS LLC | — | $4,320 |
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
SEAL DYNAMICS LLC
last award Sep 2026
GREENE TWEED & CO INC
no award yet
no awards on record
Listed source NAVAL SEA SYSTEMS COMMAND
no award yet
no awards on record
Listed source SEAL DYNAMICS LLC won the only award on record. SEAL DYNAMICS LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-26-T-15H6 | Sep 22, 2026 | Oct 2, 2026 | 27 | 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: 2026-10-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "O-RING." nsnexplorer.com, https://nsnexplorer.com/nsn/5331-01-579-3259/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5331-01-579-3259/