Acquisition method (AMC)
1
FSC 5331 × O-RING
O-RING
5331-01-128-4133 FSC 5331
NSN 5331-01-128-4133 (also written 5331011284133; NIIN 01-128-4133) is an o-ring in Federal Supply Class 5331, O-Rings. 4 manufacturer part numbers from 3 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 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 |
|---|---|
| OUTSIDE DIAMETER ABHE | INCHES NOMINAL 7.525 |
| TEMP RATING ABJH | FAHRENHEIT -85.0 AND FAHRENHEIT 401.0 |
| CROSS-SECTIONAL HEIGHT ADVN | INCHES MINIMUM 0.269 AND INCHES MAXIMUM 0.281 |
| CENTER HOLE DIAMETER ADYT | INCHES MINIMUM 6.952 AND INCHES MAXIMUM 6.998 |
| ELONGATION PERCENTAGE ANYN | MAXIMUM 125 |
| HARDNESS RATING CQFM | SHORE DUROMETER A NOMINAL 70.0 |
| MATERIAL MATT | RUBBER SILICONE CLASS Q |
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 |
|---|---|---|
| AS3582-441 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| AS3582-441 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| MS9068-441 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| SAE-AS3582 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
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
$3.66
Purchases
1
Total spend
$936.96
Sep 24, 2026
Last purchased
2 · 2.0/yr
Purchase records
$1,874
Total demand
$3.66
Latest unit price
Purchase history
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 24, 2026 | SPE7L126P9H37 ↗ | — | — | $936.96 |
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
CAGE TM363
last award Sep 2026
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source SAE INTERNATIONAL DBA SAE INTERNATIONAL
no award yet
no awards on record
Listed source SOCIETY OF AUTOMOTIVE ENGINEERS INC
no award yet
no awards on record
Listed source CAGE TM363 won the only award on record. CAGE TM363 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-26-T-09S7 | Sep 11, 2026 | Sep 21, 2026 | 256 | 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/5331-01-128-4133/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5331-01-128-4133/