The Bolt,shear, cataloged under National Stock Number 5306-01-446-3143, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-446-3143 |
| Primary Part Number | BACB30US8P21 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN |
| Head Height | 0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Fastener Length | 2.207 INCHES MINIMUM AND 2.237 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.808 INCHES MINIMUM AND 0.838 INCHES MAXIMUM IN |
| Thread Length | 0.910 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.637 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN |
| Grip Diameter | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | AAL |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| BACB3OUS8P21 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30US8P21 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB3OUS8P21 | Huck International, Inc (USA) |
| BACB30US8P21 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| BACB3OUS8P21 | Federal Manufacturing Corp (USA) |
| BACB3OUS8P21 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30US8P21 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| BACB30US8P21 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30US8P21 | Howmet Global Fastening Systems Inc (USA) |
| BACB30US8P21 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACB3OUS8P21 | 7/2 Vendor item drawing reference U.S. Government activity |
| BACB3OUS8P21 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-446-3143 is a Bolt,shear, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-446-3143 has 10 manufacturer part numbers on file: BACB3OUS8P21 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30US8P21 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB3OUS8P21 (Huck International, Inc), BACB30US8P21 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), BACB3OUS8P21 (Federal Manufacturing Corp) and 5 more.
Key specifications for BACB30US8P21: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN. 23 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.