The O-Ring, cataloged under National Stock Number 5331-01-382-3974, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Atlantic Inertial Systems Inc Div Cheshire Division. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-382-3974 |
| Primary Part Number | 306799-00 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Atlantic Inertial Systems Inc Div Cheshire Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | MIL-G-25169, CLASS II MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 4.966 INCHES MINIMUM AND 5.012 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| 306799-00 PRIMARY | Atlantic Inertial Systems Inc Div Cheshire Division (USA) |
NSN 5331-01-382-3974 is a O-Ring, manufactured by Atlantic Inertial Systems Inc Div Cheshire Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-382-3974 has 1 manufacturer part number on file: 306799-00 (Atlantic Inertial Systems Inc Div Cheshire Division).
Key specifications for 306799-00: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: MIL-G-25169, CLASS II MIL SPEC SINGLE MATERIAL RESPONSE; Center Hole Diameter: 4.966 INCHES MINIMUM AND 5.012 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.