The O-Ring, cataloged under National Stock Number 5331-01-500-7788, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Apple Rubber Products, Inc. Dba Apple Rubber Products Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-500-7788 |
| Primary Part Number | O-RING .571IDX.063W 70 BUNA N |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Apple Rubber Products, Inc. Dba Apple Rubber Products Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.063 INCHES NOMINAL IN |
| Center Hole Diameter | 0.571 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 81296 | Thales Defense & Security Inc Dba Thales Communications Inc (USA) |
| O-RING .571IDX.063W 70 BUNA N PRIMARY | Apple Rubber Products, Inc. Dba Apple Rubber Products Inc (USA) |
NSN 5331-01-500-7788 is a O-Ring, manufactured by Apple Rubber Products, Inc. Dba Apple Rubber Products Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-500-7788 has 2 manufacturer part numbers on file: 81296 (Thales Defense & Security Inc Dba Thales Communications Inc), O-RING .571IDX.063W 70 BUNA N (Apple Rubber Products, Inc. Dba Apple Rubber Products Inc).
Key specifications for O-RING .571IDX.063W 70 BUNA N: Cross-Sectional Height: 0.063 INCHES NOMINAL IN; Center Hole Diameter: 0.571 INCHES NOMINAL IN; Material: RUBBER. 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.