The Washer,key, cataloged under National Stock Number 5310-01-327-8262, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 13 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 | 5310-01-327-8262 |
| Primary Part Number | 5820617 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.270 INCHES NOMINAL IN |
| Split Key Length | 0.115 INCHES NOMINAL IN |
| External Prebent Key Length | 0.185 INCHES NOMINAL IN |
| Overall Distance Including Keys | 0.653 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 0.445 INCHES NOMINAL IN |
| External Tapered Key Width | 0.255 INCHES NOMINAL IN |
| Material Thickness | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| External Key Quantity | 1 |
| External Prebent Key Width | 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM 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 |
|---|---|
| 5820617 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-327-8262 is a Washer,key, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-327-8262 has 1 manufacturer part number on file: 5820617 (Naval Sea Systems Command).
Key specifications for 5820617: Distance From Centerline to Inside of Prebent Key: 0.270 INCHES NOMINAL IN; Split Key Length: 0.115 INCHES NOMINAL IN; External Prebent Key Length: 0.185 INCHES NOMINAL IN; Overall Distance Including Keys: 0.653 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN. 13 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.