The Packing,preformed, cataloged under National Stock Number 5330-00-855-1285, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-855-1285 |
| Primary Part Number | 74909 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.129 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Material Document and Classification | MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Center Hole Diameter | 2.724 INCHES MINIMUM AND 2.744 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| 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 |
|---|---|
| 74909 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| 74909 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5330-00-855-1285 is a Packing,preformed, manufactured by Prestolite Electric Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-855-1285 has 1 manufacturer part number on file: 74909 (Prestolite Electric Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-977-5721, 5330-01-149-4572. Verify interchangeability with system specifications before substitution.
Key specifications for 74909: Cross-Sectional Height: 0.129 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL; Material Document and Classification: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SQUARE/RECTANGULAR. 6 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.