The Bolt,shear, cataloged under National Stock Number 5306-01-412-6056, 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 Div PB Fasteners. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-412-6056 |
| Primary Part Number | 20-057-12-131D |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Fastener Length | 8.173 INCHES MINIMUM AND 8.203 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.627 INCHES NOMINAL IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM THREADS IN |
| Material Document and Classification | MIL-B-7838 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Width Between Flats | 1.062 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN |
| Grip Diameter | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 8.549 INCHES MINIMUM AND 8.577 INCHES MAXIMUM THREADS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 20-057-12-131D | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 20-057-12-131D | Lfc Industries, Inc. (USA) |
| 20-057-12-131D | Saturn Fasteners Inc (USA) |
| 20-057-12-131D | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 20-057-12-131D | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 20-057-12-131D | Heartland Precision Fasteners Inc (USA) |
| 20-057-12-131D | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 20-057-12-131D | 5/9 Secondary reference Sps Technologies Inc |
| 20-057-12-131D | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 20-057-12-131D | 3/2 Design control — primary reference U.S. Government activity |
| 20-057-12-13D | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 20-057-12-13D | 5/9 Secondary reference Sps Technologies Inc |
| 20-057-12-13D | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| 20-057-12-13D | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 20-057-12-131D | 5/2 Secondary reference U.S. Government activity |
| 20-057-12-13D | 5/9 Secondary reference Aerospace Rivet Mfrs Corp |
| 20-057-12-13D | 5/9 Secondary reference Saturn Fasteners Inc |
| 20-057-12-13D | 5/9 Secondary reference Heartland Precision Fasteners Inc |
| 20-057-12-13D | 5/9 Secondary reference Lfc Industries, Inc. |
| 20-057-12-13D | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
NSN 5306-01-412-6056 is a Bolt,shear, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-412-6056 has 7 manufacturer part numbers on file: 20-057-12-131D (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 20-057-12-131D (Lfc Industries, Inc.), 20-057-12-131D (Saturn Fasteners Inc), 20-057-12-131D (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 20-057-12-131D (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-439-0635. Verify interchangeability with system specifications before substitution.
Key specifications for 20-057-12-131D: Head Height: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Fastener Length: 8.173 INCHES MINIMUM AND 8.203 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 0.627 INCHES NOMINAL 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.