The O-Ring, cataloged under National Stock Number 5331-01-079-7305, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Rosemount Aerospace Ltd. Government technical data includes 8 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-079-7305 |
| Primary Part Number | C10762-0070-0013 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Rosemount Aerospace Ltd |
| Status | ACTIVE |
| Temp Rating | -80.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 0.566 INCHES NOMINAL IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | MIL-R-25988/1 CLASS 1, GR 70 MIL SPEC SINGLE MATERIAL RESPONSE |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| 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 |
|---|---|
| C10762-0070-0013 | Rosemount Aerospace Ltd (GBR) |
| Reference | Meaning |
|---|---|
| MILR25988-2-013ES | 5/9 Secondary reference Eriks B.v. |
| MIL-DTL-25988/2 | 4/1 Identification reference U.S. Government activity |
| M25988/2-013 | 2/2 Government specification standardization U.S. Government activity |
| MIL-R-25988/2 | 5/9 Secondary reference U.S. Government activity |
| C10762-0070-0013 | 5/9 Secondary reference Emerson Process Management Ltd |
NSN 5331-01-079-7305 is a O-Ring, manufactured by Rosemount Aerospace Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-079-7305 has 1 manufacturer part number on file: C10762-0070-0013 (Rosemount Aerospace Ltd).
Key specifications for C10762-0070-0013: Temp Rating: -80.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 0.566 INCHES NOMINAL IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL. 8 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.