The Washer,key, cataloged under National Stock Number 5310-00-775-5035, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-775-5035 |
| Primary Part Number | 1525-86A |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Internal Straight Key Width | 0.156 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.665 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM |
| Style Designator | KEY |
| Material Document and Classification | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.060 INCHES NOMINAL IN |
| Material Thickness | 0.500 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.510 INCHES MINIMUM AND 1.520 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 |
|---|---|
| 1525-86A PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1525-86A | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 5310-00-775-5035 is a Washer,key, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-775-5035 has 1 manufacturer part number on file: 1525-86A (Goodrich Corporation).
Key specifications for 1525-86A: Internal Straight Key Width: 0.156 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.665 INCHES MINIMUM AND 0.675 INCHES MAXIMUM IN; Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM; Style Designator: KEY. 11 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.