The Seal,nonmetallic Special Shaped, cataloged under National Stock Number 5330-00-149-7579, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-149-7579 |
| Primary Part Number | 2A318 |
| Item Name | Seal,nonmetallic Special Shaped |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Cross-Sectional Height | 1.750 INCHES NOMINAL IN |
| Cross-Sectional Width | 0.594 INCHES NOMINAL IN |
| Cross Section Inside Diameter | 0.688 INCHES NOMINAL IN |
| Material | RUBBER OVERALL |
| Construction | SOLID |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2A318 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 2A0318 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 5330-00-149-7579 is a Seal,nonmetallic Special Shaped, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-149-7579 has 1 manufacturer part number on file: 2A318 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 2A318: Cross-Sectional Height: 1.750 INCHES NOMINAL IN; Cross-Sectional Width: 0.594 INCHES NOMINAL IN; Overall Length: 0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN; Cross Section Inside Diameter: 0.688 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.