The Bolt,machine, cataloged under National Stock Number 5306-01-349-4172, is classified within Federal Supply Class 5306 (Bolts) 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 | 5306-01-349-4172 |
| Primary Part Number | LM-211-66 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lord Corporation Dba Lord Corp |
| Status | ACTIVE |
| Head Height | 0.190 INCHES NOMINAL IN |
| Fastener Length | 2.704 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN |
| Thread Length | 0.548 INCHES NOMINAL IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.172 INCHES MINIMUM AND 2.202 INCHES MAXIMUM IN |
| Width Between Flats | 0.500 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4037 OR STEEL COMP 8740 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 |
|---|---|
| LM-211-66 PRIMARY | Lord Corporation Dba Lord Corp (USA) |
NSN 5306-01-349-4172 is a Bolt,machine, manufactured by Lord Corporation Dba Lord Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-349-4172 has 1 manufacturer part number on file: LM-211-66 (Lord Corporation Dba Lord Corp).
Key specifications for LM-211-66: Head Height: 0.190 INCHES NOMINAL IN; Fastener Length: 2.704 INCHES MINIMUM AND 2.750 INCHES MAXIMUM IN; Thread Length: 0.548 INCHES NOMINAL IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. 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.