The Washer,key, cataloged under National Stock Number 5310-00-062-6027, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 9 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 | 5310-00-062-6027 |
| Primary Part Number | U521713 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Overall Distance Including Keys | 1.522 INCHES MINIMUM AND 1.542 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 1.380 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| Material Thickness | 0.058 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| External Straight Key Width | 0.228 INCHES NOMINAL IN |
| External Key Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.937 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 |
|---|---|
| U521713 PRIMARY | Triumph Thermal Systems, Llc (USA) |
NSN 5310-00-062-6027 is a Washer,key, manufactured by Triumph Thermal Systems, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-062-6027 has 1 manufacturer part number on file: U521713 (Triumph Thermal Systems, Llc).
Key specifications for U521713: Overall Distance Including Keys: 1.522 INCHES MINIMUM AND 1.542 INCHES MAXIMUM IN; Style Designator: KEY; Outside Diameter: 1.380 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN; Material Thickness: 0.058 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN. 9 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.