The Bolt,machine, cataloged under National Stock Number 5306-01-303-3897, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Perkins Engines Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-303-3897 |
| Primary Part Number | 32166219 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Perkins Engines Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.102 INCHES NOMINAL IN |
| Head Height | 0.433 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN |
| Fastener Length | 3.601 INCHES MINIMUM AND 3.661 INCHES MAXIMUM IN |
| Extended Washer Diameter | 1.011 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN |
| Thread Length | 1.260 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 32166219 PRIMARY | Perkins Engines Inc (USA) |
| Reference | Meaning |
|---|---|
| 745-662-M1 | 5/9 Secondary reference Massey-Ferguson Inc North American Parts Opn Div |
NSN 5306-01-303-3897 is a Bolt,machine, manufactured by Perkins Engines Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-303-3897 has 1 manufacturer part number on file: 32166219 (Perkins Engines Inc).
Key specifications for 32166219: Extended Washer Thickness: 0.102 INCHES NOMINAL IN; Head Height: 0.433 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN; Fastener Length: 3.601 INCHES MINIMUM AND 3.661 INCHES MAXIMUM IN; Extended Washer Diameter: 1.011 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN. 15 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.