The Screw,machine, cataloged under National Stock Number 5305-01-342-6540, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lfc Industries, Inc.. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-342-6540 |
| Primary Part Number | NA0067-050028 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lfc Industries, Inc. |
| Status | ACTIVE |
| Head Height | 3.3 MILLIMETERS MINIMUM AND 3.6 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 4H6H |
| Bearing Surface of Head Surface Finish | 0.8 MICROMETERS |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 27.7 MILLIMETERS MINIMUM AND 28.3 MILLIMETERS MAXIMUM MM |
| Screw Material Document and Classification | AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Pitch in Millimeters | 0.8 |
| Thread Length | 26.1 MILLIMETERS MINIMUM AND 28.3 MILLIMETERS MAXIMUM MM |
| Shank Surface Finish | 0.8 MICROMETERS |
| Nominal Thread Diameter | 5.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Surface Finish | 0.8 MICROMETERS |
| Width Between Flats | 7.85 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM |
| Screw Material | IRON ALLOY 660 |
| Minimum Tensile Strength | 1100 MEGAPASCALS |
| Internal Drive Style | TORQUE SET |
| Thread Series Designator | MJ |
| Screw Surface Treatment Document and Classification | QQ-P-35 FED 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 |
|---|---|
| NA0067-050028 | Lfc Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NA0067-050028 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-342-6540 is a Screw,machine, manufactured by Lfc Industries, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-342-6540 has 1 manufacturer part number on file: NA0067-050028 (Lfc Industries, Inc.).
Key specifications for NA0067-050028: Head Height: 3.3 MILLIMETERS MINIMUM AND 3.6 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4H6H; Bearing Surface of Head Surface Finish: 0.8 MICROMETERS; Screw Surface Treatment: PASSIVATE. 19 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.