The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-413-6582, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-413-6582 |
| Primary Part Number | 582-6404311-73 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 0.375 INCHES NOMINAL IN |
| Head Height | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Thread Length | 1.500 INCHES MINIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM FASTENER |
| Material Document and Classification | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 13 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Material | NICKEL ALLOY 400 FASTENER |
| Thread Series Designator | UNRC |
| Head Diameter | 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 582-6404311-73 PRIMARY | Naval Sea Systems Command (USA) |
| 211041309 | Naval Sea Systems Command (USA) |
| 751-6402605-11 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 751-6402607-11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402608 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402605 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402603-11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402604 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| 751-6402606 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402601 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402604 ITEM 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402603 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402601 ITEM 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 582-6404311-34 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 751-6402607 FIND 11 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-413-6582 is a Screw,cap,socket Head, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-413-6582 has 3 manufacturer part numbers on file: 582-6404311-73 (Naval Sea Systems Command), 211041309 (Naval Sea Systems Command), 751-6402605-11 (Naval Sea Systems Command).
Key specifications for 582-6404311-73: Width Across Flats: 0.375 INCHES NOMINAL IN; Head Height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Fastener Length: 1.750 INCHES NOMINAL IN; Thread Length: 1.500 INCHES MINIMUM IN. 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.