The Screw,shoulder, cataloged under National Stock Number 5305-01-688-4973, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-688-4973 |
| Primary Part Number | AL4005769 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Width Across Flats | 5.0 MILLIMETERS NOMINAL MM |
| Head Height | 7.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 21.00 MILLIMETERS MINIMUM AND 21.25 MILLIMETERS MAXIMUM MM |
| Shoulder Length | 8.00 MILLIMETERS MINIMUM AND 8.25 MILLIMETERS MAXIMUM OVERALL MM |
| Shoulder Diameter | 9.928 MILLIMETERS MINIMUM AND 10.010 MILLIMETERS MAXIMUM OVERALL MM |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 13.0 MILLIMETERS NOMINAL MM |
| Shoulder Shape | ROUND OVERALL |
| Hardness Rating | 55.0 ROCKWELL B NOMINAL OVERALL |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 70000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 5G6G |
| Material | STEEL PROPERTY CLASS 18.8 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 16.0 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-01-688-4973 is a Screw,shoulder, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-688-4973 has 2 manufacturer part numbers on file: 90265A158 (Mcmaster-Carr Supply Co), AL4005769 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for AL4005769: Width Across Flats: 5.0 MILLIMETERS NOMINAL MM; Head Height: 7.0 MILLIMETERS NOMINAL MM; Fastener Length: 21.00 MILLIMETERS MINIMUM AND 21.25 MILLIMETERS MAXIMUM MM; Shoulder Length: 8.00 MILLIMETERS MINIMUM AND 8.25 MILLIMETERS MAXIMUM OVERALL MM. 18 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.