The Spacer,ring, cataloged under National Stock Number 5365-00-059-5545, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) 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 | 5365-00-059-5545 |
| Primary Part Number | S6135-20642 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 100.0 MICROINCHES RIGHT SIDE |
| Surface Finish | 100.0 MICROINCHES LEFT SIDE |
| Surface Finish | 100.0 MICROINCHES BORE |
| Surface Finish | 100.0 MICROINCHES LARGEST OUTSIDE DIAMETER |
| FSC Application Data | 1. HELICOPTER DRIVE MECHANISMS,ARFRAME |
| Outside Diameter | 2.812 INCHES NOMINAL IN |
| Overall Thickness | 0.1825 INCHES NOMINAL IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-T-6736,TYPE 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 2.3685 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 |
| 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 |
|---|---|
| S6135-20642 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5365-00-059-5545 is a Spacer,ring, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-059-5545 has 1 manufacturer part number on file: S6135-20642 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6135-20642: Surface Finish: 100.0 MICROINCHES RIGHT SIDE; Surface Finish: 100.0 MICROINCHES LEFT SIDE; Surface Finish: 100.0 MICROINCHES BORE; Surface Finish: 100.0 MICROINCHES LARGEST OUTSIDE DIAMETER. 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.