The Bolt,shear, cataloged under National Stock Number 5306-01-445-3709, 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 24 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-445-3709 |
| Primary Part Number | BACB30US4K12H |
| 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 | 0.235 INCHES NOMINAL IN |
| Fastener Length | 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-85614 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Hole Configuration Style | DOUBLE HEXAGON FLATS |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.740 INCHES MINIMUM AND 0.760 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 |
| Color | BLACK THREADS |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY 718 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 INCHES MINIMUM AND 0.060 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 | X |
| Part Number | Manufacturer |
|---|---|
| BACB30US4K12H PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30US4K12H PRIMARY | Federal Manufacturing Corp (USA) |
| BACB30US4K12H PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30US4K12 | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| BACB30US4K12H PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30US4K12 | Boeing Defence Australia Ltd (AUS) |
| BACB30US4K12H PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| BACB30US4K12H PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| BACB30US4K12H | 3/2 Design control — primary reference U.S. Government activity |
| BACB30US4K12H | 5/2 Secondary reference U.S. Government activity |
| BACB30US4K12H | 5/9 Secondary reference U.S. Government activity |
| LE111-0067A3412 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| BACB30US4K12H | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-01-445-3709 is a Bolt,shear, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-445-3709 has 8 manufacturer part numbers on file: BACB30US4K12H (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30US4K12H (Federal Manufacturing Corp), BACB30US4K12H (Sps Technologies, Llc Dba PB Fasteners), BACB30US4K12 (Boeing Defence Australia Ltd Div Defense, Space & Security), BACB30US4K12H (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 3 more.
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-574-2701, 5306-01-669-4554. Verify interchangeability with system specifications before substitution.
Key specifications for BACB30US4K12H: Extended Washer Thickness: 0.042 INCHES NOMINAL IN; Head Height: 0.235 INCHES NOMINAL IN; Fastener Length: 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-85614 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 24 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.