The Bolt,shear, cataloged under National Stock Number 5306-01-301-4073, 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 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-301-4073 |
| Primary Part Number | PBF26T-04-6 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.042 INCHES NOMINAL IN |
| Head Height | 0.254 INCHES NOMINAL IN |
| Fastener Length | 1.067 INCHES MINIMUM AND 1.097 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-8837 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Thread Length | 0.682 INCHES MINIMUM AND 0.732 INCHES MAXIMUM IN |
| Hardness Rating | 51.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6495 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Width Between Flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 260000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP H11 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 |
|---|---|
| EWB26-04-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF26T-04-6 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HS4142-04-6 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS4142-04-6 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
NSN 5306-01-301-4073 is a Bolt,shear, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-301-4073 has 2 manufacturer part numbers on file: EWB26-04-6 (Sps Technologies, Llc Dba PB Fasteners), PBF26T-04-6 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners).
Key specifications for PBF26T-04-6: Extended Washer Thickness: 0.042 INCHES NOMINAL IN; Head Height: 0.254 INCHES NOMINAL IN; Fastener Length: 1.067 INCHES MINIMUM AND 1.097 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-8837 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.