The Bolt,hook, cataloged under National Stock Number 5306-01-665-4197, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-665-4197 |
| Primary Part Number | 4179169 |
| Item Name | Bolt,hook |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Distance From Inside of Bend to Shank End | 3.75 INCHES NOMINAL IN |
| Thread Length | 2.25 INCHES NOMINAL IN |
| Hook Inside Width | 0.956 INCHES NOMINAL IN |
| Style Designator | ROUND BEND |
| Material Document and Classification | SAE J429 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Inside Center of Bend to Hook End | 0.5625 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | PHOSPHATE ZINC OVERALL |
| Thread Class | 1A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 4179169 PRIMARY | Oshkosh Defense Llc (USA) |
NSN 5306-01-665-4197 is a Bolt,hook, manufactured by Oshkosh Defense Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-665-4197 has 1 manufacturer part number on file: 4179169 (Oshkosh Defense Llc).
Key specifications for 4179169: Distance From Inside of Bend to Shank End: 3.75 INCHES NOMINAL IN; Thread Length: 2.25 INCHES NOMINAL IN; Hook Inside Width: 0.956 INCHES NOMINAL IN; Style Designator: ROUND BEND. 14 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.