The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-663-4592, 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 15 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 | 5305-01-663-4592 |
| Primary Part Number | ISO 4762 M8X40-8.8-A2K |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Width Across Flats | 6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM MM |
| Head Height | 7.64 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM |
| Fastener Length | 39.5 MILLIMETERS MINIMUM AND 40.5 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | ISO 4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 27.50 MILLIMETERS MINIMUM AND 34.75 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Chamfer Angle | 45.0 DEGREES MAXIMUM |
| Internal Drive Style | HEXAGON |
| Material | STEEL PROPERTY CLASS 8.8 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 13.00 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 |
|---|---|
| ISO 4762 M8X40-8.8-A2K PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5305-01-663-4592 is a Screw,cap,socket Head, manufactured by International Organization for Standardization (iso), classified under FSC 5305, Screws. Status: active.
NSN 5305-01-663-4592 has 1 manufacturer part number on file: ISO 4762 M8X40-8.8-A2K (International Organization for Standardization (iso)).
Key specifications for ISO 4762 M8X40-8.8-A2K: Width Across Flats: 6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM MM; Head Height: 7.64 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM; Fastener Length: 39.5 MILLIMETERS MINIMUM AND 40.5 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: ISO 4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL. 15 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.