The Bolt,shear, cataloged under National Stock Number 5306-01-619-7785, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-619-7785 |
| Primary Part Number | BACB30MR4AH8 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | ACTIVE |
| Extended Washer Thickness | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Head Height | 0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Fastener Length | 0.925 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | BMS10-85, TY I, CL A MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.470 INCHES NOMINAL IN |
| Thread Length | 0.425 INCHES NOMINAL IN |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Width Between Flats | 0.347 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN |
| Grip Diameter | 0.2481 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY OVERALL |
| Hole Quantity | 2 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.038 INCHES MINIMUM AND 0.042 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 |
|---|---|
| BACB30MR4AH8 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BACB30MR4AH8 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30MR4AH8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30MR4AH8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30MR4AH8 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BACB30MR4AH8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-619-7785 is a Bolt,shear, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-619-7785 has 5 manufacturer part numbers on file: BACB30MR4AH8 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), BACB30MR4AH8 (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30MR4AH8 (Sps Technologies, Llc Dba PB Fasteners), BACB30MR4AH8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30MR4AH8 (Huck International, Inc).
Key specifications for BACB30MR4AH8: Extended Washer Thickness: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Head Height: 0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN; Fastener Length: 0.925 INCHES NOMINAL IN; Surface Treatment Document and Classification: BMS10-85, TY I, CL A MFR REF 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.