The Washer,key, cataloged under National Stock Number 5310-00-800-8075, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Timken Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-800-8075 |
| Primary Part Number | K91506 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Internal Straight Key Width | 0.176 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.494 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 1.875 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.213 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 |
|---|---|
| K91506 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13029673 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
| K91506 | C/1 Advisory reference — outside the item-of-supply concept Meritor Heavy Vehicle Systems, Llc |
NSN 5310-00-800-8075 is a Washer,key, manufactured by The Timken Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-800-8075 has 1 manufacturer part number on file: K91506 (The Timken Corporation).
Key specifications for K91506: Internal Straight Key Width: 0.176 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.494 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 1.875 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.