The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-122-3193, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Div Huck Products Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-122-3193 |
| Primary Part Number | D791518-56 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc. Div Huck Products Division |
| Status | ACTIVE |
| Width Across Flats | 0.141 INCHES NOMINAL IN |
| Head Height | 0.164 INCHES NOMINAL IN |
| Fastener Length | 0.732 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.117 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.487 INCHES MINIMUM AND 0.527 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.270 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 |
|---|---|
| D791518-56 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| P174-832-5 | Unicorp. (USA) |
| Reference | Meaning |
|---|---|
| D791518-56 | 5/9 Secondary reference U.S. Government activity |
| 577R005H56 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5306-01-122-3193 is a Bolt,internal Wrenching, manufactured by Huck International, Inc. Div Huck Products Division, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-122-3193 has 2 manufacturer part numbers on file: D791518-56 (Huck International, Inc. Div Huck Products Division), P174-832-5 (Unicorp.).
Key specifications for D791518-56: Width Across Flats: 0.141 INCHES NOMINAL IN; Head Height: 0.164 INCHES NOMINAL IN; Fastener Length: 0.732 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED 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.