The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-500-0176, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-500-0176 |
| Primary Part Number | 3266329 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Head Height | 0.620 INCHES NOMINAL IN |
| Fastener Length | 4.000 INCHES NOMINAL IN |
| Extended Washer Diameter | 1.330 INCHES NOMINAL IN |
| Special Test Features | 1000 HRS. MIN. TIME TO RED RUST |
| Thread Length | 1.500 INCHES NOMINAL IN |
| Supplementary Features | FINISH: TWO COATS DACROMET 7 320 TWO COATS PLUS7 BLACK SEALER OR EQUIVALENT; STANDARD: ANSI/ASME B18.2.1 |
| Nominal Thread Diameter | 0.620 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Test Data Document | 1Y2S6-ASTM B117 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Thread Quantity Per Inch | 11 |
| 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 |
|---|---|
| 3266329 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 3266329 | 3/9 Design control — primary reference Oshkosh Corp |
NSN 5305-01-500-0176 is a Screw,cap,hexagon Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-500-0176 has 1 manufacturer part number on file: 3266329 (Oshkosh Defense Llc).
Key specifications for 3266329: Head Height: 0.620 INCHES NOMINAL IN; Fastener Length: 4.000 INCHES NOMINAL IN; Extended Washer Diameter: 1.330 INCHES NOMINAL IN; Special Test Features: 1000 HRS. MIN. TIME TO RED RUST. 13 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.