The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-680-8142, 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 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-680-8142 |
| Primary Part Number | 12601059-021 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Head Height | 6.4 MILLIMETERS NOMINAL MM |
| Fastener Length | 160.0 MILLIMETERS NOMINAL MM |
| Thread Length | 32.0 MILLIMETERS NOMINAL MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 16.9 MILLIMETERS NOMINAL MM |
| Material | STEEL PROPERTY CLASS 10.9 OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| 12601059-021 PRIMARY | Oshkosh Defense Llc (USA) |
| 12601059-021 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 3836187021 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 3836187 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Defense Llc |
NSN 5305-01-680-8142 is a Screw,cap,hexagon Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-680-8142 has 3 manufacturer part numbers on file: 12601059-021 (Oshkosh Defense Llc), 12601059-021 (U S Army Tank Automotive Command Amsta-Im-Mm), 3836187021 (Oshkosh Defense Llc).
Key specifications for 12601059-021: Head Height: 6.4 MILLIMETERS NOMINAL MM; Fastener Length: 160.0 MILLIMETERS NOMINAL MM; Thread Length: 32.0 MILLIMETERS NOMINAL MM; Head Style: HEXAGON. 8 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.