The Washer,convex, cataloged under National Stock Number 5310-01-357-0887, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-357-0887 |
| Primary Part Number | SUM4097 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Style Designator | CONVEX |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Material Thickness | 0.138 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.209 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 |
|---|---|
| SUM4097 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| SUM4097 | 5/9 Secondary reference Ge Aviation Systems Ltd |
| SUM4097 | 5/9 Secondary reference Ge Aviation Systems Llc Dba Ge Aviation |
NSN 5310-01-357-0887 is a Washer,convex, manufactured by Ge Aviation Systems Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-357-0887 has 1 manufacturer part number on file: SUM4097 (Ge Aviation Systems Llc).
Key specifications for SUM4097: Style Designator: CONVEX; Outside Diameter: 0.500 INCHES NOMINAL IN; Material Thickness: 0.138 INCHES NOMINAL IN; Surface Treatment: CADMIUM OVERALL. 6 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.