The Retainer,packing, cataloged under National Stock Number 5330-01-330-0498, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-330-0498 |
| Primary Part Number | 803-5959304-X-39 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.406 INCHES NOMINAL IN |
| Attachment Feature Quantity | 2 |
| Cross-Sectional Height | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B443 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Peripheral Diameter | 2.000 INCHES NOMINAL IN |
| Material | NICKEL ALLOY 625 OVERALL |
| Attachment Method | ROUND HOLE |
| 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 |
|---|---|
| 256-6603687-VHBM-44 | Naval Sea Systems Command (USA) |
| 803-5959304-X-39 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5959304-39 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-330-0498 is a Retainer,packing, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-330-0498 has 2 manufacturer part numbers on file: 256-6603687-VHBM-44 (Naval Sea Systems Command), 803-5959304-X-39 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-603-7083. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5959304-X-39: Attachment Hole Diameter: 0.406 INCHES NOMINAL IN; Attachment Feature Quantity: 2; Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Material Document and Classification: ASTM B443 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 7 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.