The Washer,key, cataloged under National Stock Number 5310-00-438-8610, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dana Off Highway Products, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-438-8610 |
| Primary Part Number | 217507 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dana Off Highway Products, Llc |
| Status | ACTIVE |
| Internal Straight Key Width | 0.250 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 1.000 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 3.125 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 2.172 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 |
|---|---|
| 217507 PRIMARY | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 217507 | 5/9 Secondary reference Clark Equipment Co |
NSN 5310-00-438-8610 is a Washer,key, manufactured by Dana Off Highway Products, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-438-8610 has 1 manufacturer part number on file: 217507 (Dana Off Highway Products, Llc).
Key specifications for 217507: Internal Straight Key Width: 0.250 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 1.000 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 3.125 INCHES NOMINAL 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.