The Bolt,shoulder, cataloged under National Stock Number 5306-01-202-6839, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-202-6839 |
| Primary Part Number | BACB30PU6-16 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Fastener Length | 1.454 INCHES MINIMUM AND 1.484 INCHES MAXIMUM IN |
| Shoulder Length | 1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.434 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| BACB30PU6-16 | Huck International, Inc (USA) |
| BACB30PU6-16 | Howmet Global Fastening Systems Inc (USA) |
| BACB30PU6-16 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30PU6-16 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30PU6-16 | Federal Manufacturing Corp (USA) |
| BACB30PU6-16 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BACB30PU6-16 | 5/9 Secondary reference U.S. Government activity |
| BACB30PU6-16 | 5/2 Secondary reference U.S. Government activity |
| BACB30PU6-16 | 5/2 Secondary reference U.S. Government activity |
| BACB30PU6-16 | 5/2 Secondary reference U.S. Government activity |
| BACB30PU6-16 | 1/2 Source control — Government-approved source U.S. Government activity |
| BACB30PW6U16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-202-6839 is a Bolt,shoulder, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-202-6839 has 6 manufacturer part numbers on file: BACB30PU6-16 (Huck International, Inc), BACB30PU6-16 (Howmet Global Fastening Systems Inc), BACB30PU6-16 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30PU6-16 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30PU6-16 (Federal Manufacturing Corp) and 1 more.
Key specifications for BACB30PU6-16: Head Height: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Fastener Length: 1.454 INCHES MINIMUM AND 1.484 INCHES MAXIMUM IN; Shoulder Length: 1.000 INCHES MINIMUM AND 1.020 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.