The Washer,keyway, cataloged under National Stock Number 5310-00-596-4553, 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 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-596-4553 |
| Primary Part Number | 10-76848-3 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| Status | ACTIVE |
| External Keyway Width | 0.156 INCHES NOMINAL IN |
| External Keyway Quantity | 1 |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Material Thickness | 0.004 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.290 INCHES NOMINAL IN |
| External Keyway Length | 0.075 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 |
|---|---|
| 10-76848-3 PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
| Reference | Meaning |
|---|---|
| 10-76848-3 | 5/9 Secondary reference Teledyne Industries Inc Teledyne Power Systems Div |
| 10-76848-3 | 5/9 Secondary reference Unison Industries Llc |
NSN 5310-00-596-4553 is a Washer,keyway, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-596-4553 has 1 manufacturer part number on file: 10-76848-3 (Amphenol Corp Div Amphenol Aerospace Operations).
Key specifications for 10-76848-3: External Keyway Width: 0.156 INCHES NOMINAL IN; External Keyway Quantity: 1; Outside Diameter: 0.500 INCHES NOMINAL IN; Material Thickness: 0.004 INCHES NOMINAL IN. 7 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.