The Screw,machine, cataloged under National Stock Number 5305-01-247-7604, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-247-7604 |
| Primary Part Number | 6504208 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Head Height | 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Screw Surface Treatment | OXIDE |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-B-613 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE OR QQ-W-321 FED SPEC 3RD MATERIAL RESPONSE |
| Thread Length | 2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 1 TYPE AND 1S STYLE |
| Screw Material | COPPER ALLOY 268 OR COPPER ALLOY 260 OR COPPER ALLOY 230 OR COPPER ALLOY 377 OR COPPER ALLOY 360 OR COPPER ALLOY 353 OR COPPER ALLOY 270 OR COPPER ALLOY 274 OR COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OR COPPER ALLOY 510 OR COPPER ALLOY 745 OR COPPER ALLOY 752 OR COPPER ALLOY 757 OR COPPER ALLOY 764 OR COPPER ALLOY 770 OR COPPER ALLOY 240 OR COPPER ALLOY 342 |
| Color | BLACK |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| 6504208 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 4047-1056 ITEM 20 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 443-5940130 ITEM 20 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
| 443-5940130 ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5305-01-247-7604 is a Screw,machine, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-247-7604 has 3 manufacturer part numbers on file: 6504208 (Huntington Ingalls Inc Div Newport News Shipbuilding), 4047-1056 ITEM 20 (Huntington Ingalls Inc Div Newport News Shipbuilding), 443-5940130 ITEM 20 (Naval Sea Systems Command).
Key specifications for 6504208: Head Height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN; Screw Surface Treatment: OXIDE; Fastener Length: 2.500 INCHES NOMINAL IN; Screw Material Document and Classification: QQ-B-613 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE OR QQ-W-321 FED SPEC 3RD MATERIAL RESPONSE. 18 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.