The Seal,plain, cataloged under National Stock Number 5330-01-676-8974, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Exlar Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Seal,plain |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Exlar Corporation (CAGE 1KHV0) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-676-8974 |
| Primary Part Number | 68491 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Exlar Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 68491 PRIMARY | Exlar Corporation (USA) |
| Reference | Meaning |
|---|---|
| 60563 FN 21 | C/1 Advisory reference — outside the item-of-supply concept Exlar Corporation |
| 60563 | D/9 Drawing number reference only Exlar Corporation |
NSN 5330-01-676-8974 is a Seal,plain, manufactured by Exlar Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-676-8974 has 1 manufacturer part number on file: 68491 (Exlar Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-676-9137, 6105-01-676-9998. Verify interchangeability with system specifications before substitution.
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.