The Bolt,shoulder, cataloged under National Stock Number 5306-01-240-4013, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-240-4013 |
| Primary Part Number | BACB30PU5-4 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Fastener Length | 0.675 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN |
| Shoulder Length | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.405 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 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 | X |
| Part Number | Manufacturer |
|---|---|
| BACB30PU5-4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30PU5-4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30PU5-4 | Howmet Global Fastening Systems Inc (USA) |
| BACB30PU5-4 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30PU5-4 | Federal Manufacturing Corp (USA) |
| BACB30PU5-4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30PU5-4 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30PU5-4 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BACB30PU5-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30PU5-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30PU5-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30PU5-4 | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
| BACB30PU5-4 | 5/9 Secondary reference U.S. Government activity |
| BACB30PU5-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-240-4013 is a Bolt,shoulder, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-240-4013 has 8 manufacturer part numbers on file: BACB30PU5-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30PU5-4 (Sps Technologies, Llc Dba PB Fasteners), BACB30PU5-4 (Howmet Global Fastening Systems Inc), BACB30PU5-4 (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30PU5-4 (Federal Manufacturing Corp) and 3 more.
Key specifications for BACB30PU5-4: Head Height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Fastener Length: 0.675 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN; Shoulder Length: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.