The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-458-3817, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-458-3817 |
| Primary Part Number | ISO7380-M4X12-12.9-B3B |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Width Across Flats | 2.5 MILLIMETERS NOMINAL MM |
| Head Height | 1.9 MILLIMETERS MINIMUM AND 2.2 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 5G6G |
| Fastener Length | 11.6 MILLIMETERS MINIMUM AND 12.3 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | ISO 4042 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 0.7 |
| Thread Length | 10.2 MILLIMETERS MINIMUM MM |
| Material Document and Classification | ISO 898-1 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL PROPERTY CLASS 12.9 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 7.2 MILLIMETERS MINIMUM AND 7.6 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| ISO7380-M4X12-12.9-B3B PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5305-01-458-3817 is a Screw,cap,socket Head, manufactured by International Organization for Standardization (iso), classified under FSC 5305, Screws. Status: active.
NSN 5305-01-458-3817 has 1 manufacturer part number on file: ISO7380-M4X12-12.9-B3B (International Organization for Standardization (iso)).
Key specifications for ISO7380-M4X12-12.9-B3B: Width Across Flats: 2.5 MILLIMETERS NOMINAL MM; Head Height: 1.9 MILLIMETERS MINIMUM AND 2.2 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 5G6G; Fastener Length: 11.6 MILLIMETERS MINIMUM AND 12.3 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.