The Spacer,ring, cataloged under National Stock Number 5365-00-421-9982, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Textron Systems Corporation Dba Textron Systems Corp. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-421-9982 |
| Primary Part Number | 3728-1057-1 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Textron Systems Corporation Dba Textron Systems Corp |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES RIGHT SIDE |
| Surface Finish | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER |
| Surface Finish | 125.0 MICROINCHES LEFT SIDE |
| Surface Finish | 125.0 MICROINCHES BORE |
| Outside Diameter | 3.500 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN |
| Overall Thickness | 0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Inside Diameter | 2.625 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE |
| Material | STEEL |
| 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 |
|---|---|
| 3728-1057-1 PRIMARY | Textron Systems Corporation Dba Textron Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 9282988-01 | 5/2 Secondary reference U.S. Government activity |
NSN 5365-00-421-9982 is a Spacer,ring, manufactured by Textron Systems Corporation Dba Textron Systems Corp, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-421-9982 has 1 manufacturer part number on file: 3728-1057-1 (Textron Systems Corporation Dba Textron Systems Corp).
Key specifications for 3728-1057-1: Surface Finish: 125.0 MICROINCHES RIGHT SIDE; Surface Finish: 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER; Surface Finish: 125.0 MICROINCHES LEFT SIDE; Surface Finish: 125.0 MICROINCHES BORE. 9 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.