The Washer,key, cataloged under National Stock Number 5310-00-285-9078, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-285-9078 |
| Primary Part Number | 5589317 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Internal Straight Key Width | 0.09375 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 1.062 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 2.714 INCHES NOMINAL IN |
| Material Thickness | 0.015 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 2.437 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 |
|---|---|
| 5589317 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5310-00-285-9078 is a Washer,key, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-9078 has 1 manufacturer part number on file: 5589317 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 5589317: Internal Straight Key Width: 0.09375 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 1.062 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 2.714 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.