The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-593-0897, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-593-0897 |
| Primary Part Number | 39933 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Width Across Flats | 8.0 MILLIMETERS MINIMUM AND 8.1 MILLIMETERS MAXIMUM MM |
| Head Height | 6.2 MILLIMETERS MINIMUM AND 6.6 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 5G6G |
| Fastener Length | 24.6 MILLIMETERS MINIMUM AND 25.4 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 1.8 |
| Thread Length | 21.1 MILLIMETERS MINIMUM AND 23.7 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 12.0 MILLIMETERS MM |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL PROPERTY CLASS 10.9 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 20.5 MILLIMETERS MINIMUM AND 21.0 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 |
|---|---|
| 39933 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
| 12759-01307 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
| ISO7380-M12X25-10.9-A2D | International Organization for Standardization (iso) (CHE) |
NSN 5305-01-593-0897 is a Screw,cap,socket Head, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-593-0897 has 3 manufacturer part numbers on file: 39933 (Fastenal Company Dba Fastenal Co), 12759-01307 (Fastenal Company Dba Fastenal Co), ISO7380-M12X25-10.9-A2D (International Organization for Standardization (iso)).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-701-5927. Verify interchangeability with system specifications before substitution.
Key specifications for 39933: Width Across Flats: 8.0 MILLIMETERS MINIMUM AND 8.1 MILLIMETERS MAXIMUM MM; Head Height: 6.2 MILLIMETERS MINIMUM AND 6.6 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 5G6G; Fastener Length: 24.6 MILLIMETERS MINIMUM AND 25.4 MILLIMETERS MAXIMUM MM. 14 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.