The Bolt,shoulder, cataloged under National Stock Number 5306-00-020-0857, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 15 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 | 5306-00-020-0857 |
| Primary Part Number | 11663341 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN |
| Fastener Length | 1.990 INCHES MINIMUM AND 2.012 INCHES MAXIMUM IN |
| Shoulder Length | 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.622 INCHES MINIMUM AND 0.626 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.735 INCHES MINIMUM AND 0.767 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OR AISI ASSN STD 3RD MATERIAL RESPONSE OR ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OR AISI ASSN STD 4TH MATERIAL RESPONSE OR QQ-S-634-CANCELED FED SPEC 5TH MATERIAL RESPONSE OR AISI ASSN STD 5TH MATERIAL RESPONSE OR ASTM A108 ASSN STD 6TH MATERIAL RESPONSE OR AISI ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1524 OR STEEL COMP 1025 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5306-00-020-0857 is a Bolt,shoulder, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-020-0857 has 2 manufacturer part numbers on file: 11663341 (U S Army Tank Automotive Command Amsta-Im-Mm), GS106-35 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11663341: Head Height: 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN; Fastener Length: 1.990 INCHES MINIMUM AND 2.012 INCHES MAXIMUM IN; Shoulder Length: 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.622 INCHES MINIMUM AND 0.626 INCHES MAXIMUM FIRST SHOULDER IN. 15 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.