The O-Ring, cataloged under National Stock Number 5331-01-051-8126, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-051-8126 |
| Primary Part Number | MS28775-035 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 2.355 INCHES MINIMUM AND 2.403 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 2.229 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2-035 N304-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| MS28775-035 PRIMARY | Sae International Dba Sae International (USA) |
| 2533405-35 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| P48026-035 | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| Reference | Meaning |
|---|---|
| MS28775-035 | 5/9 Secondary reference U.S. Government activity |
| 5331PL0658311 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2-035 N304-75 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| MS28775-035ES | 5/9 Secondary reference Eriks B.v. |
| MS28775-035 | 5/9 Secondary reference U.S. Government activity |
| 10469682 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| SAE-AS28775 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MIL-P-25732 2.2 50 ID X 2.375 0 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-051-8126 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-051-8126 has 4 manufacturer part numbers on file: 2-035 N304-75 (Parker-Hannifin Corp Div O-Ring Division), MS28775-035 (Sae International Dba Sae International), 2533405-35 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), P48026-035 (Acushnet Rubber Company, Inc. Dba Precix).
Key specifications for MS28775-035: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 2.355 INCHES MINIMUM AND 2.403 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 2.229 INCHES MINIMUM AND 2.249 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.
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.