The Washer,flat, cataloged under National Stock Number 5310-00-182-6787, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lord Corporation Dba Lord Corp. Government technical data includes 10 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 | 5310-00-182-6787 |
| Primary Part Number | LM307-34 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lord Corporation Dba Lord Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | J-1221-18 FSCM 76005 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.560 INCHES NOMINAL IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.340 INCHES NOMINAL IN |
| Thickness | 0.020 INCHES NOMINAL IN |
| 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 |
|---|---|
| LM307-34 PRIMARY | Lord Corporation Dba Lord Corp (USA) |
NSN 5310-00-182-6787 is a Washer,flat, manufactured by Lord Corporation Dba Lord Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-182-6787 has 1 manufacturer part number on file: LM307-34 (Lord Corporation Dba Lord Corp).
Key specifications for LM307-34: Surface Treatment Document and Classification: J-1221-18 FSCM 76005 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.560 INCHES NOMINAL IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR. 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.