The Seal,plain, cataloged under National Stock Number 5330-01-437-3620, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-437-3620 |
| Primary Part Number | 6960586 PC13 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Seal Width | 0.438 INCHES NOMINAL IN |
| Outside Diameter | 2.786 INCHES NOMINAL IN |
| Housing Bore Diameter | 2.782 INCHES NOMINAL IN |
| Accommodated Shaft Diameter | 1.875 INCHES NOMINAL IN |
| Surface Treatment | PLASTIC CASE |
| 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 |
|---|---|
| 6960586 PC13 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 18695 | 5/2 Secondary reference U.S. Government activity |
| 593-6960586 PC13 | 5/9 Secondary reference Naval Sea Systems Command |
| CRWHA1-R | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-437-3620 is a Seal,plain, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-437-3620 has 1 manufacturer part number on file: 6960586 PC13 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-579-2682. Verify interchangeability with system specifications before substitution.
Key specifications for 6960586 PC13: Seal Width: 0.438 INCHES NOMINAL IN; Outside Diameter: 2.786 INCHES NOMINAL IN; Housing Bore Diameter: 2.782 INCHES NOMINAL IN; Accommodated Shaft Diameter: 1.875 INCHES NOMINAL IN. 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.