The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-261-2004, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-261-2004 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.750 INCHES NOMINAL IN |
| Fastener Length | 8.812 INCHES MINIMUM AND 9.000 INCHES MAXIMUM IN |
| Thread Length | 2.500 INCHES MINIMUM AND 2.712 INCHES MAXIMUM IN |
| Hardness Rating | 207.0 BRINELL STANDARD MAXIMUM OVERALL |
| Material Document and Classification | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MODIFIED BY HEAD DIMENSIONS |
| Width Between Flats | 1.312 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 10 STYLE AND 2 TYPE |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 28000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | STEEL 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 |
| Reference | Meaning |
|---|---|
| FFS85TYPE2STYLE10PGRADE2 | 4/1 Identification reference U.S. Government activity |
NSN 5305-00-261-2004 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-261-2004: Head Height: 0.750 INCHES NOMINAL IN; Fastener Length: 8.812 INCHES MINIMUM AND 9.000 INCHES MAXIMUM IN; Thread Length: 2.500 INCHES MINIMUM AND 2.712 INCHES MAXIMUM IN; Hardness Rating: 207.0 BRINELL STANDARD MAXIMUM OVERALL. 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.