The Bolt,shear, cataloged under National Stock Number 5306-01-200-1428, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lfc Industries, Inc.. Government technical data includes 22 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-200-1428 |
| Primary Part Number | 20-057-4-19D |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lfc Industries, Inc. |
| 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 | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.598 INCHES MINIMUM AND 1.628 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 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 | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.410 INCHES MINIMUM AND 0.460 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| 20-057-4-19D PRIMARY | Lfc Industries, Inc. (USA) |
| 20-057-4-19D PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 20-057-4-19D PRIMARY | Heartland Precision Fasteners Inc (USA) |
| 20-057-4-19D PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 20-057-4-19D PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 20-057-4-19D PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 20-057-4-19D PRIMARY | Saturn Fasteners Inc (USA) |
| 20-057-4-19D PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1498291 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 20-057-4-19D | 1/2 Source control — Government-approved source U.S. Government activity |
| 20-057-4-19D | 5/9 Secondary reference Sps Technologies Inc |
| 20-057-4-19D | 5/9 Secondary reference U.S. Government activity |
| 20-057-4-19D | 5/9 Secondary reference Aerospace Rivet Mfrs Corp |
NSN 5306-01-200-1428 is a Bolt,shear, manufactured by Lfc Industries, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-200-1428 has 8 manufacturer part numbers on file: 20-057-4-19D (Lfc Industries, Inc.), 20-057-4-19D (Howmet Global Fastening Systems Inc), 20-057-4-19D (Heartland Precision Fasteners Inc), 20-057-4-19D (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 20-057-4-19D (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 3 more.
Key specifications for 20-057-4-19D: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 63.0 MICROINCHES GRIP; Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN. 22 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.