The Washer,lock, cataloged under National Stock Number 5310-01-028-4850, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-028-4850 |
| Primary Part Number | 52010113-000 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.484 INCHES NOMINAL0.484 INCHES NOMINAL IN |
| Material Thickness | 0.047 INCHES NOMINAL0.047 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.260 INCHES NOMINAL0.260 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 |
|---|---|
| 52010113-000 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5850-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-028-4850 is a Washer,lock, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-028-4850 has 1 manufacturer part number on file: 52010113-000 (Northrop Grumman Systems Corporation).
Key specifications for 52010113-000: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.484 INCHES NOMINAL0.484 INCHES NOMINAL IN; Material Thickness: 0.047 INCHES NOMINAL0.047 INCHES NOMINAL IN; Surface Treatment: CADMIUM OVERALL. 6 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.