The Retainer,packing, cataloged under National Stock Number 5330-01-259-0851, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Retainer,packing |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Parker-Hannifin Corporation Dba Pneutronics (CAGE 3H889); Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (CAGE 8X044) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-259-0851 |
| Primary Part Number | 2495556 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 2495556 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| 2495556 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 2495556 | 3/9 Design control — primary reference U.S. Government activity |
| 2495556 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-259-0851 is a Retainer,packing, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-259-0851 has 2 manufacturer part numbers on file: 2495556 (Parker-Hannifin Corporation Dba Pneutronics), 2495556 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
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.