The Retainer,packing, cataloged under National Stock Number 5330-01-264-5964, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-264-5964 |
| Primary Part Number | 256157 PIECE 15 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Material Document and Classification | MIL-C-15726,70-30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | COPPER ALLOY 715 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 |
|---|---|
| 256157 PIECE 15 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 258760 ITEM 15 | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5330-01-264-5964 is a Retainer,packing, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-264-5964 has 1 manufacturer part number on file: 256157 PIECE 15 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 256157 PIECE 15: Material Document and Classification: MIL-C-15726,70-30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY 715 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.