The O-Ring, cataloged under National Stock Number 5331-00-800-8718, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 21 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-800-8718 |
| Primary Part Number | MS28775-139 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 2.358 INCHES MINIMUM AND 2.404 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 2.165 INCHES MINIMUM AND 2.185 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 230079069 | Rosomak S.a (POL) |
| 1376-16-161 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| MS28775-139 | Dbr Industries, Inc. Dba Dbr Industries Inc (USA) |
| W4072833AL | Rheinmetall Air Defence Ag (CHE) |
| 161979 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 2300-79069 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| MS28775-139 PRIMARY | Sae International Dba Sae International (USA) |
| 2-139N304-75 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 9469126139 | Pilatus Aircraft Ltd (CHE) |
| Reference | Meaning |
|---|---|
| 199993 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS28775-139 | 5/9 Secondary reference Seals & Packings, Llc |
| MS28775-139 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| NB39813972 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 1376-16-161 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS28775-139 | 5/9 Secondary reference U.S. Government activity |
| 5331PL0809656 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS28775-139 | 5/9 Secondary reference U.S. Government activity |
| 700-139-355C | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| Z00.N7423261628TBM | 5/9 Secondary reference Daher Aerospace - Ex Socata |
| 2-139 N304-75 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| SAE AS 28775 | 5/9 Secondary reference U.S. Government activity |
| MS28775-139ES | 5/9 Secondary reference Eriks B.v. |
| SAE-AS28775 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 2-139 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ARP568-139MILP2 5732 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2-136 N304-75 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ARP568-139 MIL- P-83461 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 0411161-139 | 5/2 Secondary reference U.S. Government activity |
| 2-139 N304-75 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-800-8718 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: cancelled.
NSN 5331-00-800-8718 has 9 manufacturer part numbers on file: 230079069 (Rosomak S.a), 1376-16-161 (Leonardo S.p.a. - Electronics Division - Defence Business Area), MS28775-139 (Dbr Industries, Inc. Dba Dbr Industries Inc), W4072833AL (Rheinmetall Air Defence Ag), 161979 (Eaton Aerospace, Llc Dba Jackson South) and 4 more.
5 possible matches (shared part number, not a government interchangeability claim): 5331-00-818-4591, 5310-00-819-1473, 5331-01-160-2083. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-139: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 2.358 INCHES MINIMUM AND 2.404 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 2.165 INCHES MINIMUM AND 2.185 INCHES MAXIMUM IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5331-00-800-8718 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.