The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-666-8216, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-666-8216 |
| Primary Part Number | 12600428-020 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 8.1 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 85.0 MILLIMETERS NOMINAL MM |
| Extended Washer Diameter | 14.9 MILLIMETERS MINIMUM MM |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 22.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | CHAMFER FLANGE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 12.73 MILLIMETERS MINIMUM AND 13.00 MILLIMETERS MAXIMUM 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 |
|---|---|
| 12600428-020 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12414307-214 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 3836194020 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 12600428 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 3836194 | D/9 Drawing number reference only Oshkosh Defense Llc |
NSN 5305-01-666-8216 is a Screw,cap,hexagon Head, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-666-8216 has 3 manufacturer part numbers on file: 12600428-020 (U S Army Tank Automotive Command Amsta-Im-Mm), 12414307-214 (U S Army Tank Automotive Command Amsta-Im-Mm), 3836194020 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-672-1288. Verify interchangeability with system specifications before substitution.
Key specifications for 12600428-020: Head Height: 8.1 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 85.0 MILLIMETERS NOMINAL MM; Extended Washer Diameter: 14.9 MILLIMETERS MINIMUM MM. 12 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.