The O-Ring, cataloged under National Stock Number 5331-01-477-4266, 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 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-477-4266 |
| Primary Part Number | MS28778-06 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.072 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.461 INCHES MINIMUM AND 0.471 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 |
|---|---|
| MS28778-06 PRIMARY | Sae International Dba Sae International (USA) |
| AS28778-6 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| MS28778-06 | 5/9 Secondary reference U.S. Government activity |
| MS28778-06 | 5/9 Secondary reference Le Joint Francais |
| 5331PL0937984 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS28778-06 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS28778 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5331-01-477-4266 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-477-4266 has 2 manufacturer part numbers on file: MS28778-06 (Sae International Dba Sae International), AS28778-6 (Us Army Aviation and Missile Command).
Key specifications for MS28778-06: Cross-Sectional Height: 0.072 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN; Special Features: TUBING OVERALL DIAMETER IS 3/8 INCH IN; Center Hole Diameter: 0.461 INCHES MINIMUM AND 0.471 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 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.