The Bolt,shoulder, cataloged under National Stock Number 5306-00-752-1055, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-752-1055 |
| Primary Part Number | 7521055 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Fastener Length | 6.178 INCHES MINIMUM AND 6.198 INCHES MAXIMUM IN |
| Shoulder Length | 3.557 INCHES MINIMUM AND 3.567 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.401 INCHES MINIMUM AND 0.406 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1212 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 1087D | Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA) |
| 7521055 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 914120 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 1087D | 5/2 Secondary reference U.S. Government activity |
| 5306007521055 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5306-00-752-1055 is a Bolt,shoulder, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-752-1055 has 2 manufacturer part numbers on file: 1087D (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 7521055 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7521055: Head Height: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Fastener Length: 6.178 INCHES MINIMUM AND 6.198 INCHES MAXIMUM IN; Shoulder Length: 3.557 INCHES MINIMUM AND 3.567 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.401 INCHES MINIMUM AND 0.406 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.