The Washer,lock, cataloged under National Stock Number 5310-01-149-6256, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Electric Co Motor Business Group. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-149-6256 |
| Primary Part Number | N405P17B11 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Electric Co Motor Business Group |
| Status | ACTIVE |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 1.082 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN |
| Material Thickness | 0.126 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN |
| Color | OLIVE DRAB OVERALL |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.625 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 |
|---|---|
| N405P17B11 PRIMARY | General Electric Co Motor Business Group (USA) |
| Reference | Meaning |
|---|---|
| N4059P17B11 | 5/9 Secondary reference General Electric Co Motor Business Group |
NSN 5310-01-149-6256 is a Washer,lock, manufactured by General Electric Co Motor Business Group, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-149-6256 has 1 manufacturer part number on file: N405P17B11 (General Electric Co Motor Business Group).
Key specifications for N405P17B11: Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 1.082 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN; Material Thickness: 0.126 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN. 8 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.