The Spacer,ring, cataloged under National Stock Number 5365-01-075-3996, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Down East, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-075-3996 |
| Primary Part Number | DEI-1266 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Down East, Inc. |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES RIGHT SIDE |
| Surface Finish | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER |
| Surface Finish | 125.0 MICROINCHES LEFT SIDE |
| Outside Diameter | 3.902 INCHES NOMINAL IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-T-1368,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 3.492 INCHES NOMINAL IN |
| Material | NICKEL ALLOY 400 |
| 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 |
|---|---|
| DEI-1266 PRIMARY | Down East, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 77M69-20 ITEM 20 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5365-01-075-3996 is a Spacer,ring, manufactured by Down East, Inc., classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-075-3996 has 1 manufacturer part number on file: DEI-1266 (Down East, Inc.).
Key specifications for DEI-1266: Surface Finish: 125.0 MICROINCHES RIGHT SIDE; Surface Finish: 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER; Surface Finish: 125.0 MICROINCHES LEFT SIDE; Outside Diameter: 3.902 INCHES NOMINAL IN. 8 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.