The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-449-0439, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-449-0439 |
| Primary Part Number | 518-5794762 ITEM 16 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | NICKEL ALLOY 400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 518-5794762 ITEM 16 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 518-5794762 | 5/9 Secondary reference Naval Sea Systems Command |
| MIL-DTL-1222J | 4/1 Identification reference U.S. Government activity |
| 518-5794762 ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 518-57994762 ITEM 16 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5305-01-449-0439 is a Screw,cap,hexagon Head, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-449-0439 has 1 manufacturer part number on file: 518-5794762 ITEM 16 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 518-5794762 ITEM 16: Fastener Length: 0.750 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.375 INCHES IN; Head Style: HEXAGON. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.