The Seal,nonmetallic Round Section, cataloged under National Stock Number 5330-01-253-7496, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Air Armament Center/ En. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-253-7496 |
| Primary Part Number | 8394463-01 |
| Item Name | Seal,nonmetallic Round Section |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Air Armament Center/ En |
| Status | ACTIVE |
| Hardness Rating | 40.0 SHORE DUROMETER A NOMINAL OVERALL |
| Style Designator | OVAL |
| Material Document and Classification | ZZ-R-765 GR 40 CL 2A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A |
| Cross-Sectional Shape Style | CIRCULAR |
| Cross Section Outside Diameter | 0.438 INCHES NOMINAL IN |
| Material | RUBBER SILICONE CLASS Q 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 |
|---|---|
| 8394463-01 PRIMARY | Air Armament Center/ En (USA) |
| 8394463-01 | Looney L W and Son Inc (USA) |
| Reference | Meaning |
|---|---|
| 8394463-01 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-253-7496 is a Seal,nonmetallic Round Section, manufactured by Air Armament Center/ En, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-253-7496 has 2 manufacturer part numbers on file: 8394463-01 (Air Armament Center/ En), 8394463-01 (Looney L W and Son Inc).
Key specifications for 8394463-01: Hardness Rating: 40.0 SHORE DUROMETER A NOMINAL OVERALL; Style Designator: OVAL; Material Document and Classification: ZZ-R-765 GR 40 CL 2A FED SPEC SINGLE MATERIAL RESPONSE OVERALL A; Cross-Sectional Shape Style: CIRCULAR. 7 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.