The Bolt,shoulder, cataloged under National Stock Number 5306-01-131-8452, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-131-8452 |
| Primary Part Number | 74A451125-2001 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 1.710 INCHES NOMINAL IN |
| Shoulder Length | 1.270 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.4659 INCHES MINIMUM AND 0.4666 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.357 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.600 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE GRIP |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 74A451125-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A451125-2001 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 74A451125-2001 | The Boeing Company Div Services (USA) |
| Reference | Meaning |
|---|---|
| 74A451125-2001 | 5/9 Secondary reference Harlow Aerostructures, Llc |
| 10115863 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A451125-2001 | 5/9 Secondary reference Orc-O Tool & Machine Inc |
| 74A451125-2001 | 5/9 Secondary reference Aero Machine Co Lc |
NSN 5306-01-131-8452 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-131-8452 has 3 manufacturer part numbers on file: 74A451125-2001 (The Boeing Company Div Defense), 74A451125-2001 (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 74A451125-2001 (The Boeing Company Div Services).
Key specifications for 74A451125-2001: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 1.710 INCHES NOMINAL IN; Shoulder Length: 1.270 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.4659 INCHES MINIMUM AND 0.4666 INCHES MAXIMUM FIRST SHOULDER IN. 17 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.