The Washer,key, cataloged under National Stock Number 5310-00-162-9275, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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 | 5310-00-162-9275 |
| Primary Part Number | 1A5823 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.250 INCHES NOMINAL IN |
| Overall Distance Including Keys | 2.460 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Material Thickness | 0.520 INCHES NOMINAL IN |
| External Key Quantity | 15 |
| Internal Prebent Key Length | 0.460 INCHES NOMINAL IN |
| External Prebent Key Width | 0.250 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.572 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 |
|---|---|
| 1A5823 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5310-00-162-9275 is a Washer,key, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-162-9275 has 1 manufacturer part number on file: 1A5823 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 1A5823: Internal Prebent Key Width: 0.250 INCHES NOMINAL IN; Overall Distance Including Keys: 2.460 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 2.000 INCHES NOMINAL IN. 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.