The O-Ring, cataloged under National Stock Number 5331-00-499-5696, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-499-5696 |
| Primary Part Number | 02503 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Cross-Sectional Height | 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM D2000 4CH810 A25 B14 EF31 E015 E035 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 1.953 INCHES MINIMUM AND 1.987 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 02503 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| 68-740 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-499-5696 is a O-Ring, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-499-5696 has 1 manufacturer part number on file: 02503 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
1 possible match (shared part number, not a government interchangeability claim): 5305-00-697-5754. Verify interchangeability with system specifications before substitution.
Key specifications for 02503: Cross-Sectional Height: 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Material Document and Classification: ASTM D2000 4CH810 A25 B14 EF31 E015 E035 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 1.953 INCHES MINIMUM AND 1.987 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 4 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.