The Gasket, cataloged under National Stock Number 5330-01-521-6946, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Foster-Miller, Inc. Dba Qinetiq North America. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-521-6946 |
| Primary Part Number | 5021-3-5 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Foster-Miller, Inc. Dba Qinetiq North America |
| Status | ACTIVE |
| Material Document and Classification | MIL-G-1149,CL-2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | RUBBER SYNTHETIC 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 |
|---|---|
| 5021-3 PT NO 5 | Hunt Valve Company, Inc. (USA) |
| 5021-3-5 PRIMARY | Foster-Miller, Inc. Dba Qinetiq North America (USA) |
| Reference | Meaning |
|---|---|
| 5021-3 PT NO 5 | 5/9 Secondary reference Pima Valve, Llc |
NSN 5330-01-521-6946 is a Gasket, manufactured by Foster-Miller, Inc. Dba Qinetiq North America, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-521-6946 has 2 manufacturer part numbers on file: 5021-3 PT NO 5 (Hunt Valve Company, Inc.), 5021-3-5 (Foster-Miller, Inc. Dba Qinetiq North America).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-724-1805. Verify interchangeability with system specifications before substitution.
Key specifications for 5021-3-5: Material Document and Classification: MIL-G-1149,CL-2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Part Name Assigned by Controlling Agency: BONNET GASKET; End Item Identification: 2IN,150LB,BRONZE FLANGED,SCUPPER VALVE,WITH 150LB,COMMERICAL DRILLING LBS; Material: RUBBER SYNTHETIC OVERALL. 2 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.