The O-Ring, cataloged under National Stock Number 5331-01-551-0741, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Gulfstream Aerospace Corporation Div Government Contracts. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-551-0741 |
| Primary Part Number | NAS1601-120 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Gulfstream Aerospace Corporation Div Government Contracts |
| Status | ACTIVE |
| Temp Rating | -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM |
| Specification/standard Data | 80205-NAS1601 NATIONAL STD/SPEC |
| Center Hole Diameter | 0.977 INCHES MINIMUM AND 0.997 INCHES MAXIMUM IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM |
| 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 |
|---|---|
| NAS1601-120 | Gulfstream Aerospace Corporation Div Government Contracts (USA) |
| Reference | Meaning |
|---|---|
| NAS1601-120 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1601 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5331-01-551-0741 is a O-Ring, manufactured by Gulfstream Aerospace Corporation Div Government Contracts, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-551-0741 has 1 manufacturer part number on file: NAS1601-120 (Gulfstream Aerospace Corporation Div Government Contracts).
Key specifications for NAS1601-120: Temp Rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM; Specification/standard Data: 80205-NAS1601 NATIONAL STD/SPEC. 6 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.