The Gasket, cataloged under National Stock Number 5330-01-023-1972, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-023-1972 |
| Primary Part Number | SSN637-501-2143807 PIECE 4 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Hardness Rating | 50.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Material Document and Classification | MIL-R-15624 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Material | RUBBER CHLOROPRENE CLASS CR OR RUBBER BUTADIENE-STYRENE CLASS SBR OR 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 |
|---|---|
| SSN637-501-2143807 PIECE 4 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 77643-42X5 PIEC | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SSN637-501-2143807 PIECE 4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-023-1972 is a Gasket, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-023-1972 has 1 manufacturer part number on file: SSN637-501-2143807 PIECE 4 (Naval Sea Systems Command).
Key specifications for SSN637-501-2143807 PIECE 4: Hardness Rating: 50.0 SHORE DUROMETER A MAXIMUM OVERALL; Material Document and Classification: MIL-R-15624 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Material: RUBBER CHLOROPRENE CLASS CR OR RUBBER BUTADIENE-STYRENE CLASS SBR OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL. 3 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.