The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-167-4050, 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. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-167-4050 |
| Primary Part Number | 78959-12A |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OVERALL |
| Width Across Flats | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Head Height | 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| Fastener Length | 0.695 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.185 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| First Diameter From Head | 0.079 INCHES MINIMUM AND 0.089 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNJC |
| Head Diameter | 0.218 INCHES MINIMUM AND 0.226 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 |
|---|---|
| 78959-12A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| M-20832-11 | Ward Leonard Ct Llc (USA) |
| AIC485-112 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| D792325-6-11.5 | Huck International, Inc. Div Huck Products Division (USA) |
| Reference | Meaning |
|---|---|
| 965834-112 | 3/2 Design control — primary reference U.S. Government activity |
| D792325-6-11.5 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-167-4050 is a Bolt,internal Wrenching, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-167-4050 has 4 manufacturer part numbers on file: 78959-12A (Sps Technologies, Llc Dba PB Fasteners), M-20832-11 (Ward Leonard Ct Llc), AIC485-112 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), D792325-6-11.5 (Huck International, Inc. Div Huck Products Division).
Key specifications for 78959-12A: Surface Finish: 63.0 MICROINCHES OVERALL; Width Across Flats: 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Head Height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN; Fastener Length: 0.695 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN. 19 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.