The Bolt,shoulder, cataloged under National Stock Number 5306-01-259-6318, 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 20 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-259-6318 |
| Primary Part Number | BACB30MT6T24X |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Extended Washer Thickness | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN |
| Head Height | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Fastener Length | 2.133 INCHES MINIMUM AND 2.153 INCHES MAXIMUM IN |
| Shoulder Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.3891 INCHES MINIMUM AND 0.3901 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.618 INCHES MINIMUM AND 0.668 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP H11 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 |
|---|---|
| BACB30MT6T24X | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30MT6T24X | Huck International, Inc (USA) |
| BACB30MT6T24X | Federal Manufacturing Corp (USA) |
| BACB30MT6T24X | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30MT6T24X | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30MT6T24X | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACB30MT6T24X | 3/2 Design control — primary reference U.S. Government activity |
| BACB30MT6T24X | 5/2 Secondary reference U.S. Government activity |
| BACB30MT6T24X | 5/9 Secondary reference U.S. Government activity |
| BACB30MT6T24X | 5/2 Secondary reference U.S. Government activity |
| BACB30MT6T24X | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-259-6318 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 5306-01-259-6318 has 6 manufacturer part numbers on file: BACB30MT6T24X (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30MT6T24X (Huck International, Inc), BACB30MT6T24X (Federal Manufacturing Corp), BACB30MT6T24X (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30MT6T24X (Sps Technologies, Llc Dba PB Fasteners) and 1 more.
Key specifications for BACB30MT6T24X: Extended Washer Thickness: 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN; Head Height: 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN; Fastener Length: 2.133 INCHES MINIMUM AND 2.153 INCHES MAXIMUM IN; Shoulder Length: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM FIRST SHOULDER IN. 20 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.