The O-Ring, cataloged under National Stock Number 5331-00-402-0234, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Mission Systems, Inc. Dba Gdms. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-402-0234 |
| Primary Part Number | 42A44535B03 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | General Dynamics Mission Systems, Inc. Dba Gdms |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.538 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR |
| 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 |
|---|---|
| 42A44535B03 PRIMARY | General Dynamics Mission Systems, Inc. Dba Gdms (USA) |
| Reference | Meaning |
|---|---|
| 11-26 | 5/9 Secondary reference U.S. Government activity |
| 42A44535B03 | 5/9 Secondary reference U.S. Government activity |
| 11-26 | 5/9 Secondary reference Motorola Automotive Electronics |
NSN 5331-00-402-0234 is a O-Ring, manufactured by General Dynamics Mission Systems, Inc. Dba Gdms, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-402-0234 has 1 manufacturer part number on file: 42A44535B03 (General Dynamics Mission Systems, Inc. Dba Gdms).
Key specifications for 42A44535B03: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 1.538 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN; Material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR. 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.