The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-182-9558, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-182-9558 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN |
| Head Height | 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Fastener Length | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Thread Length | 0.136 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.134 INCHES MINIMUM AND 0.140 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 |
|---|---|
| 691C994P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-182-9558 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-182-9558: Width Across Flats: 0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Head Height: 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN; Fastener Length: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Thread Length: 0.136 INCHES MINIMUM AND 0.204 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.