Acquisition method (AMC)
1
FSC 5331 × O-RING
O-RING
5331-00-618-1657 FSC 5331
NSN 5331-00-618-1657 (also written 5331006181657; NIIN 00-618-1657) is an o-ring in Federal Supply Class 5331, O-Rings. 9 manufacturer part numbers from 8 suppliers 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 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 |
|---|---|
| CENTER HOLE DIAMETER ADYT | INCHES MINIMUM 2.290 AND INCHES MAXIMUM 2.310 |
| CROSS-SECTIONAL HEIGHT ADVN | INCHES MINIMUM 0.100 AND INCHES MAXIMUM 0.106 |
| MATERIAL MATT | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| HARDNESS RATING CQFM | SHORE DUROMETER A NOMINAL 70.0 |
| OUTSIDE DIAMETER ABHE | INCHES NOMINAL 2.506 |
| ELONGATION PERCENTAGE ANYN | MAXIMUM 250 |
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 |
|---|---|---|
| 2-141 47-071 | 02692 | DOLLY MFG CORP |
| 5331PL1279552 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 55-109 | 11960 | KIRKHILL TA HASKON DIV |
| MS29561-141 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| MS29561-141 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| MS29561-141 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MS29561-141 | A0126 | LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE |
| OR1-141 | 00UUK | ORION S/A |
| SAE-AS29561 | 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
$0.793
Purchases
1
Total spend
$820.76
Oct 7, 2026
Last purchased
2 · 2.0/yr
Purchase records
$1,642
Total demand
$0.793
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 7, 2026 | 1,035 | $0.793 | $820.76 | BLADE INDUSTRIAL PRODUCTS INC (1JYT1) | 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 7, 2026 | SPE7L127V0310 ↗ | BLADE INDUSTRIAL PRODUCTS INC | — | $820.76 |
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
BLADE INDUSTRIAL PRODUCTS INC
last award Oct 2026
DOLLY MFG CORP
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source KIRKHILL TA HASKON DIV
no award yet
no awards on record
Listed source LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE
no award yet
no awards on record
Listed source MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source ORION S/A
no award yet
no awards on record
Listed source SAE INTERNATIONAL DBA SAE INTERNATIONAL
no award yet
no awards on record
Listed source BLADE INDUSTRIAL PRODUCTS INC won the only award on record. BLADE INDUSTRIAL PRODUCTS INC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-27-T-0090 | Oct 2, 2026 | Oct 13, 2026 | 1,035 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "O-RING." nsnexplorer.com, https://nsnexplorer.com/nsn/5331-00-618-1657/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5331-00-618-1657/