The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-265-4815, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Deere & Co. 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 | 5310-01-265-4815 |
| Primary Part Number | T21965 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Deere & Co |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES TOP |
| Shoulder Height | 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN |
| Heat Treatment | HOT ROLLED |
| Hardness Rating | 79.0 ROCKWELL A MINIMUM |
| Style Designator | SHOULDERED AND RECESSED |
| Outside Diameter | 1.875 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Material Thickness | 0.160 INCHES NOMINAL IN |
| Shoulder Diameter | 1.500 INCHES NOMINAL IN |
| Material | STEEL COMP 1117 OVERALL |
| Hole Diameter | 1.260 INCHES NOMINAL IN |
| Recess Angle | 60.0 DEGREES NOMINAL |
| 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 |
|---|---|
| T21965 PRIMARY | Deere & Co (USA) |
NSN 5310-01-265-4815 is a Washer,shouldered and Recessed, manufactured by Deere & Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-265-4815 has 1 manufacturer part number on file: T21965 (Deere & Co).
Key specifications for T21965: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES TOP; Shoulder Height: 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN; Heat Treatment: HOT ROLLED. 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.