The O-Ring, cataloged under National Stock Number 5331-01-705-7321, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-705-7321 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Outside Diameter | 0.103 INCHES NOMINAL IN |
| Center Hole Diameter | 1.799 INCHES NOMINAL IN |
| Material | RUBBER FLUOROSILICONE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M25988/3-133 | 2/2 Government specification standardization U.S. Government activity |
NSN 5331-01-705-7321 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-705-7321: Outside Diameter: 0.103 INCHES NOMINAL IN; Special Features: 1510-33-209-1552;AIRPLANE CARGO TRANSPORT A400M; Center Hole Diameter: 1.799 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING. 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.