The Bolt,shear, cataloged under National Stock Number 5306-01-077-1003, 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 25 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-077-1003 |
| Primary Part Number | 20-057-5-48H |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 63.0 MICROINCHES GRIP |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Fastener Length | 3.454 INCHES MINIMUM AND 3.484 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | HEXAGON CORNERS |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.990 INCHES MINIMUM AND 3.010 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 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 | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| Hole Quantity | 3 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM 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 |
|---|---|
| 20-057-5-48H | 3-V Fastener Co., Inc. (USA) |
| 20-057-5-48H PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 20-057-5-48H | Lfc Industries, Inc. (USA) |
| 20-057-5-48H | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 20-057-5-48H | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 20-057-5-48H | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 20-057-5-48H PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 20-057-5-48H | Saturn Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| 20-057-5-48H | 5/9 Secondary reference Huck International, Inc |
| NAS1305-48H | 5/9 Secondary reference U.S. Government activity |
| 20-057-5-48H | 5/9 Secondary reference Sps Technologies Inc |
| 20-057-5-48H | 5/9 Secondary reference U.S. Government activity |
| 20-057-5-48H | 5/9 Secondary reference U.S. Government activity |
| 20-057-5-48H | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5306-01-077-1003 is a Bolt,shear, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-077-1003 has 8 manufacturer part numbers on file: 20-057-5-48H (3-V Fastener Co., Inc.), 20-057-5-48H (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 20-057-5-48H (Lfc Industries, Inc.), 20-057-5-48H (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 20-057-5-48H (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 3 more.
Key specifications for 20-057-5-48H: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 63.0 MICROINCHES GRIP; Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN. 25 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.