Acquisition method (AMC)
1
FSC 5331 × O-RING
O-RING
5331-01-129-2011 FSC 5331
NSN 5331-01-129-2011 (also written 5331011292011; NIIN 01-129-2011) is an o-ring in Federal Supply Class 5331, O-Rings. 4 manufacturer part numbers from 2 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 | |
|---|---|---|---|
| SPE7L1-27-T-0995 | 172 | Closes in 4d | Bid → |
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
T
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC T: handled under qualified products list procedures. 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 4.193 |
| CROSS-SECTIONAL HEIGHT ADVN | INCHES MINIMUM 0.100 AND INCHES MAXIMUM 0.106 |
| CENTER HOLE DIAMETER ADYT | INCHES MINIMUM 3.959 AND INCHES MAXIMUM 4.015 |
| ELONGATION PERCENTAGE ANYN | MAXIMUM 125 |
| HARDNESS RATING CQFM | SHORE DUROMETER A NOMINAL 80.0 |
| MATERIAL MATT | RUBBER FLUOROSILICONE CLASS FQ |
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 |
|---|---|---|
| 99-4685-155 | 99167 | HAMILTON SUNDSTRAND CORPORATION |
| M25988/4-155 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MIL-DTL-25988/4 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MIL-R-25988/4 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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
—
Sep 29, 2026
Last purchased
1 · 1.0/yr
Purchase records
$1,463
Total demand
$1,463
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 |
|---|---|---|---|---|
| Sep 29, 2026 | SPE7L126P9L63 ↗ | HC MERCHANDISERS, INC. DBA HC MERCHANDISERS INC DIV HC PACIFIC | — | $1,463 |
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
HC MERCHANDISERS, INC. DBA HC MERCHANDISERS INC DIV HC PACIFIC
last award Sep 2026
HAMILTON SUNDSTRAND CORPORATION
no award yet
no awards on record
Listed source MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source HC MERCHANDISERS, INC. DBA HC MERCHANDISERS INC DIV HC PACIFIC won the only award on record. HC MERCHANDISERS, INC. DBA HC MERCHANDISERS INC DIV HC PACIFIC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-27-T-0995 | Oct 13, 2026 | Oct 23, 2026 | 172 | Open | 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: 2026-09-30.
- Full methodology →
Cite this page
Citation
NSN Explorer. "O-RING." nsnexplorer.com, https://nsnexplorer.com/nsn/5331-01-129-2011/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5331-01-129-2011/