The Washer,convex, cataloged under National Stock Number 5310-00-489-9350, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-489-9350 |
| Primary Part Number | S6112-23043-101 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 90.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Style Designator | CONVEX |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.940 INCHES NOMINAL IN |
| Material Thickness | 0.200 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.640 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 |
|---|---|
| S6112-23043-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-00-489-9350 is a Washer,convex, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-489-9350 has 1 manufacturer part number on file: S6112-23043-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6112-23043-101: Surface Finish: 90.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM; Style Designator: CONVEX. 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.