The Screw,close Tolerance, cataloged under National Stock Number 5305-00-184-9451, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lord Corporation Dba Lord Corp. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-184-9451 |
| Primary Part Number | LM307-31 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lord Corporation Dba Lord Corp |
| Status | ACTIVE |
| Width Across Flats | 0.1572 INCHES MINIMUM AND 0.1592 INCHES MAXIMUM IN |
| Fastener Length | 2.595 INCHES MINIMUM AND 2.605 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | J-1221-18,TYPE 1C FSCM 76005 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.243 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.295 INCHES MINIMUM AND 2.305 INCHES MAXIMUM IN |
| Grip Diameter | 0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| LM307-31 PRIMARY | Lord Corporation Dba Lord Corp (USA) |
NSN 5305-00-184-9451 is a Screw,close Tolerance, manufactured by Lord Corporation Dba Lord Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-184-9451 has 1 manufacturer part number on file: LM307-31 (Lord Corporation Dba Lord Corp).
Key specifications for LM307-31: Width Across Flats: 0.1572 INCHES MINIMUM AND 0.1592 INCHES MAXIMUM IN; Fastener Length: 2.595 INCHES MINIMUM AND 2.605 INCHES MAXIMUM IN; Surface Treatment Document and Classification: J-1221-18,TYPE 1C FSCM 76005 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.243 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN. 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.