The Screw,machine, cataloged under National Stock Number 5305-01-389-9133, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Speedwell Ventures, Inc. Div Western Fastener Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-389-9133 |
| Primary Part Number | 25C8PXMZ |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Speedwell Ventures, Inc. Div Western Fastener Co |
| Status | ACTIVE |
| Head Height | 1.9 MILLIMETERS MINIMUM AND 2.1 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 4G6G |
| Screw Surface Treatment | ZINC |
| Fastener Length | 7.7 MILLIMETERS MINIMUM AND 8.2 MILLIMETERS MAXIMUM MM |
| Screw Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OR 66, CARBON STEEL FED STD SINGLE MATERIAL RESPONSE |
| Thread Pitch in Millimeters | 0.45 |
| Nominal Thread Diameter | 2.5 MILLIMETERS MM |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Series Designator | M |
| Head Diameter | 4.7 MILLIMETERS MINIMUM AND 5.0 MILLIMETERS MAXIMUM MM |
| Screw Surface Treatment Document and Classification | QQ-Z-325, TY II, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM B633, TY II, CLASS FE/ZN5, ASSN STD SINGLE TREATMENT RESPONSE OR MIL-C-81562, TY II, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| 25C8PXMZ PRIMARY | Speedwell Ventures, Inc. Div Western Fastener Co (USA) |
| Reference | Meaning |
|---|---|
| 7010518-001 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
NSN 5305-01-389-9133 is a Screw,machine, manufactured by Speedwell Ventures, Inc. Div Western Fastener Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-389-9133 has 1 manufacturer part number on file: 25C8PXMZ (Speedwell Ventures, Inc. Div Western Fastener Co).
Key specifications for 25C8PXMZ: Head Height: 1.9 MILLIMETERS MINIMUM AND 2.1 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4G6G; Screw Surface Treatment: ZINC; Fastener Length: 7.7 MILLIMETERS MINIMUM AND 8.2 MILLIMETERS MAXIMUM MM. 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.