The Bolt,shoulder, cataloged under National Stock Number 5306-01-208-0812, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-208-0812 |
| Primary Part Number | BACB30PW5-27 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Fastener Length | 2.082 INCHES MINIMUM AND 2.142 INCHES MAXIMUM IN |
| Shoulder Length | 1.672 INCHES MINIMUM AND 1.702 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.410 INCHES MINIMUM AND 0.440 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 | CADMIUM 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 |
|---|---|
| BACB30PW5-27 PRIMARY | Huck International, Inc (USA) |
| BACB30PW5-27 PRIMARY | Federal Manufacturing Corp (USA) |
| BACB30PW5-27 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30PW5-27 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30PW5-27 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| BACB30PW5-27 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BACB30PW5-27 | 5/9 Secondary reference U.S. Government activity |
| BACB30PW5-27 | 3/2 Design control — primary reference U.S. Government activity |
| BACB30PW5-27 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-208-0812 is a Bolt,shoulder, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-208-0812 has 6 manufacturer part numbers on file: BACB30PW5-27 (Huck International, Inc), BACB30PW5-27 (Federal Manufacturing Corp), BACB30PW5-27 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30PW5-27 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30PW5-27 (Howmet Global Fastening Systems Inc) and 1 more.
Key specifications for BACB30PW5-27: Head Height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Fastener Length: 2.082 INCHES MINIMUM AND 2.142 INCHES MAXIMUM IN; Shoulder Length: 1.672 INCHES MINIMUM AND 1.702 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 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.