The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-685-8541, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-685-8541 |
| Primary Part Number | 12603974-001 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Width Across Flats | 10.175 MILLIMETERS MAXIMUM MM |
| Head Height | 8.80 MILLIMETERS MAXIMUM MM |
| Fastener Length | 40.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 2.0 |
| Thread Length | 37.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 16.0 MILLIMETERS MM |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Head Diameter | 28.00 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 |
|---|---|
| 12603974-001 PRIMARY | Oshkosh Defense Llc (USA) |
| 12603974-001 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5305-01-685-8541 is a Screw,cap,socket Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-685-8541 has 2 manufacturer part numbers on file: 12603974-001 (Oshkosh Defense Llc), 12603974-001 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12603974-001: Width Across Flats: 10.175 MILLIMETERS MAXIMUM MM; Head Height: 8.80 MILLIMETERS MAXIMUM MM; Fastener Length: 40.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 2.0. 13 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.