The Screw,lag, cataloged under National Stock Number 5305-00-252-1533, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-252-1533 |
| Item Name | Screw,lag |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.422 INCHES NOMINAL IN |
| Fastener Length | 3.500 INCHES NOMINAL IN |
| Hardness Rating | 60.0 ROCKWELL B MINIMUM OVERALL |
| Nonmachine Thread Style | GIMLET POINT (TYPE A, AB OR BA) |
| Material Document and Classification | ASTM A-307,GR A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | SQUARE |
| Width Between Flats | 0.938 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 2 STYLE AND B GRADE AND 1 TYPE |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| FFB561 | 4/1 Identification reference U.S. Government activity |
NSN 5305-00-252-1533 is a Screw,lag, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-252-1533: Head Height: 0.422 INCHES NOMINAL IN; Fastener Length: 3.500 INCHES NOMINAL IN; Hardness Rating: 60.0 ROCKWELL B MINIMUM OVERALL; Nonmachine Thread Style: GIMLET POINT (TYPE A, AB OR BA). 10 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.