The Bolt,internal Wrenching, cataloged under National Stock Number 5306-00-757-1241, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Harlow Aerostructures, Llc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-757-1241 |
| Primary Part Number | 69-30078 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Harlow Aerostructures, Llc |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OVERALL |
| Width Across Flats | 0.251 INCHES NOMINAL IN |
| Fastener Length | 1.570 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE I CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.030 INCHES NOMINAL IN |
| Hole Configuration Style | ROUND INTERNAL HEXAGON |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4340 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.470 INCHES NOMINAL FIRST HOLE IN |
| Hole Type | DRILLED |
| Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Head Diameter | 0.680 INCHES NOMINAL 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 |
|---|---|
| 69-30078 | Harlow Aerostructures, Llc (USA) |
| 69-30078 | Camnetics Manufacturing Corporation (USA) |
| 69-30078 | Pro-Fab, Llc (USA) |
| 69-30078 | D-J Engineering Inc Dba D-J Engineering Inc (USA) |
| 69-30078 | Infinity Fabrication, Inc. (USA) |
| 69-30078 | Tect Hypervelocity, Inc. (USA) |
| 69-30078 | Aero Components, Llc (USA) |
| 69-30078 | Malones Cnc Machining Inc (USA) |
| 69-30078 | C. E. Machine Co., Inc. (USA) |
| 69-30078 | Volumatic Inc Dba Volumatic Inc (USA) |
| 69-30078 | Nordam Group Llc, the Div Nordam (USA) |
| Reference | Meaning |
|---|---|
| 69-30078 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-757-1241 is a Bolt,internal Wrenching, manufactured by Harlow Aerostructures, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-757-1241 has 11 manufacturer part numbers on file: 69-30078 (Harlow Aerostructures, Llc), 69-30078 (Camnetics Manufacturing Corporation), 69-30078 (Pro-Fab, Llc), 69-30078 (D-J Engineering Inc Dba D-J Engineering Inc), 69-30078 (Infinity Fabrication, Inc.) and 6 more.
Key specifications for 69-30078: Surface Finish: 63.0 MICROINCHES OVERALL; Width Across Flats: 0.251 INCHES NOMINAL IN; Fastener Length: 1.570 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE I CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.