The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-296-0368, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-296-0368 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Head Height | 0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Fastener Length | 1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Thread Length | 1.508 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Hardness Rating | 37.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 2 TYPE |
| Locking Feature | SELF-LOCKING OVERALL |
| Surface Treatment | PHOSPHATE OVERALL |
| Minimum Tensile Strength | 170000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 11 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.921 INCHES MINIMUM AND 0.938 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 |
| Reference | Meaning |
|---|---|
| 556-6408589-45 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 752-6406825-15 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 5/8-11UNC-3AX1-3/4 IN. LG, STL | 5/1 Secondary reference U.S. Government activity |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
| M1222SN10C328GILP | 2/2 Government specification standardization U.S. Government activity |
| 211045581 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 556-6405334-57 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5305-01-296-0368 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-296-0368: Width Across Flats: 0.500 INCHES NOMINAL IN; Head Height: 0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Fastener Length: 1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Thread Length: 1.508 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN. 17 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.