The Washer,key, cataloged under National Stock Number 5310-00-033-2471, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-033-2471 |
| Primary Part Number | 10-55359 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| Status | ACTIVE |
| Angle Between First and Second Key | 30.0 DEGREES NOMINAL |
| Internal Prebent Key Width | 0.115 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.062 INCHES NOMINAL IN |
| Outside Diameter | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| External Key Quantity | 2 |
| Internal Prebent Key Length | 0.060 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| External Prebent Key Width | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.570 INCHES MINIMUM AND 0.578 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 |
|---|---|
| 10-55359 PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
| Reference | Meaning |
|---|---|
| 10-55359 | 5/9 Secondary reference Unison Industries Llc |
| 10-55359 | 5/9 Secondary reference Teledyne Industries Inc Teledyne Power Systems Div |
NSN 5310-00-033-2471 is a Washer,key, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-033-2471 has 1 manufacturer part number on file: 10-55359 (Amphenol Corp Div Amphenol Aerospace Operations).
Key specifications for 10-55359: Angle Between First and Second Key: 30.0 DEGREES NOMINAL; Internal Prebent Key Width: 0.115 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.062 INCHES NOMINAL IN; Outside Diameter: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN. 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.