The Washer,key, cataloged under National Stock Number 5310-00-856-1210, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-856-1210 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Straight Key Width | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED |
| Style Designator | KEY |
| Outside Diameter | 1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN |
| Material Thickness | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 0.510 INCHES MINIMUM AND 0.530 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 |
| Reference | Meaning |
|---|---|
| 173427 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 173427 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 173427 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 5310-00-856-1210 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-856-1210: Internal Straight Key Width: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Style Designator: KEY. 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.