The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-465-1365, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-465-1365 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 4.58 MILLIMETERS MINIMUM MM |
| Head Height | 3.88 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 4G6G |
| Fastener Length | 23.5 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | ASTM B 633, TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 6.80 MILLIMETERS MINIMUM AND 7.00 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 0.7 |
| Thread Length | 40.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | CHAMFER FLANGE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 4.020 MILLIMETERS MINIMUM AND 4.084 MILLIMETERS MAXIMUM MM |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL PROPERTY CLASS 12.9 OVERALL |
| Thread Series Designator | ISO M |
| 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 |
|---|---|
| B1831BH140040N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-465-1365 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-465-1365: Width Across Flats: 4.58 MILLIMETERS MINIMUM MM; Head Height: 3.88 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4G6G; Fastener Length: 23.5 MILLIMETERS MAXIMUM MM. 16 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.