The Screw,machine, cataloged under National Stock Number 5305-01-165-1256, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-165-1256 |
| Primary Part Number | 391-1433-035 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Parker Hannifin Corporation Div Cylinder Division |
| Status | ACTIVE |
| Head Height | 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN |
| Screw Surface Treatment | ZINC |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Thread Length | 0.650 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.389 INCHES MINIMUM AND 0.414 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 |
|---|---|
| 2AW501 | Oshkosh Defense Llc (USA) |
| 391-1433-035 PRIMARY | Parker Hannifin Corporation Div Cylinder Division (USA) |
| Reference | Meaning |
|---|---|
| 2AW501 | 5/9 Secondary reference Oshkosh Corp |
NSN 5305-01-165-1256 is a Screw,machine, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-165-1256 has 2 manufacturer part numbers on file: 2AW501 (Oshkosh Defense Llc), 391-1433-035 (Parker Hannifin Corporation Div Cylinder Division).
Key specifications for 391-1433-035: Head Height: 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN; Screw Surface Treatment: ZINC; Fastener Length: 0.750 INCHES NOMINAL IN; Thread Length: 0.650 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. 12 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.