Acquisition method (AMC)
3
FSC 5331 × O-RING
O-RING
5331-00-221-6128 FSC 5331
NSN 5331-00-221-6128 (also written 5331002216128; NIIN 00-221-6128) is an o-ring in Federal Supply Class 5331, O-Rings. 18 manufacturer part numbers from 10 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-1378 | 1,561 | Closes in 7d | Bid → |
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 |
|---|---|
| OUTSIDE DIAMETER ABHE | INCHES NOMINAL 0.504 |
| TEMP RATING ABJH | FAHRENHEIT -85.0 AND FAHRENHEIT 500.0 |
| CENTER HOLE DIAMETER ADYT | INCHES MINIMUM 0.359 AND INCHES MAXIMUM 0.369 |
| HARDNESS RATING CQFM | SHORE DUROMETER A NOMINAL 75.0 |
| ELONGATION PERCENTAGE ANYN | MAXIMUM 125 |
| CROSS-SECTIONAL HEIGHT ADVN | INCHES MINIMUM 0.067 AND INCHES MAXIMUM 0.073 |
| 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 |
|---|---|---|
| 012-11737 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| 2-012 S355-75 | 02697 | PARKER-HANNIFIN CORP DIV O-RING DIVISION |
| 5331PL0653320 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 5331PL1695136 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| A-012TH1167 | 95272 | STILLMAN SEAL CORPORATION DIV STILLMAN SEAL CORPERATION |
| A-012TH1167 | SW461 | HUTCHINSON SEAL DE MEXICO STILLMAN SEAL DIVISION DIV STILLMAN SEAL,JPR,ESPA |
| AS568-012AMS7267 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| AS568-012AMS7267 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| AS9386-012 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| AS9386B | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| MS9386-012 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| MS9386-012 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE |
| MS9386-012 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| MS9386-012 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MS9386-012ES | H2313 | ERIKS B.V. |
| PRP012-11737 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| SAE AS9386B | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL |
| SAE-AS9386 | 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
—
Purchases
0
Total spend
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
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.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-27-T-1378 | Oct 14, 2026 | Oct 26, 2026 | 1,561 | 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 15, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "O-RING." nsnexplorer.com, https://nsnexplorer.com/nsn/5331-00-221-6128/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5331-00-221-6128/