The Screw,lag, cataloged under National Stock Number 5305-01-533-2446, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-533-2446 |
| Primary Part Number | 0.3125 X 3 IN LG CRES 316 |
| Item Name | Screw,lag |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.312 INCHES IN |
| Head Height | 0.219 INCHES MINIMUM IN |
| Fastener Length | 3.219 INCHES MINIMUM IN |
| Hardness Rating | 85.0 ROCKWELL B MINIMUM AND 95.0 ROCKWELL B MINIMUM OVERALL |
| Nonmachine Thread Style | GIMLET POINT (TYPE A, AB OR BA) |
| Head Style | HEXAGON |
| Width Between Flats | 0.500 INCHES MINIMUM IN |
| Minimum Tensile Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 316 OVERALL |
| 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 |
|---|---|
| 0.3125 X 3 IN LG CRES 316 PRIMARY | Naval Sea Systems Command (USA) |
| 90123A242 | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-533-2446 is a Screw,lag, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-533-2446 has 2 manufacturer part numbers on file: 0.3125 X 3 IN LG CRES 316 (Naval Sea Systems Command), 90123A242 (Mcmaster-Carr Supply Co).
Key specifications for 0.3125 X 3 IN LG CRES 316: Nonmachine Nominal Thread Diameter: 0.312 INCHES IN; Head Height: 0.219 INCHES MINIMUM IN; Fastener Length: 3.219 INCHES MINIMUM IN; Hardness Rating: 85.0 ROCKWELL B MINIMUM AND 95.0 ROCKWELL B MINIMUM OVERALL. 9 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.