The Gasket, cataloged under National Stock Number 5330-01-518-4553, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-518-4553 |
| Primary Part Number | 2521N022019-165 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE CASE |
| Fabrication Method | SOLID |
| 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 |
|---|---|
| 2521N022019-165 PRIMARY | Greene Tweed & Co Inc (USA) |
| 2521N02200-019-11 | Greene Tweed & Co France SAS (FRA) |
| 2521N022019-165 | Greene Tweed & Co France SAS (FRA) |
| Reference | Meaning |
|---|---|
| 2521N02200-019-11 | 5/9 Secondary reference Greene Tweed & Co Inc |
NSN 5330-01-518-4553 is a Gasket, manufactured by Greene Tweed & Co Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-518-4553 has 3 manufacturer part numbers on file: 2521N022019-165 (Greene Tweed & Co Inc), 2521N02200-019-11 (Greene Tweed & Co France SAS), 2521N022019-165 (Greene Tweed & Co France SAS).
Key specifications for 2521N022019-165: Special Features: NOTCHED CAPS; FLUOROPOLYMER O-RING ENERGIZER; 1.113-1.114 IN. PISTON OD IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE CASE; Fabrication Method: SOLID. 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.