The Spacer,ring, cataloged under National Stock Number 5365-01-027-2640, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-027-2640 |
| Item Name | Spacer,ring |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES LARGEST OUTSIDE DIAMETER |
| Outside Diameter | 3.360 INCHES MINIMUM AND 3.390 INCHES MAXIMUM IN |
| Overall Thickness | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | ASTM A513-A519 ASSN STD ALL MATERIAL RESPONSES OR ASTM A322-A331 ASSN STD ALL MATERIAL RESPONSES |
| Inside Diameter | 2.753 INCHES MINIMUM AND 2.783 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OR STEEL COMP 4135 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4188133 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5365-01-027-2640 is a Spacer,ring, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
Key specifications for 5365-01-027-2640: Surface Finish: 32.0 MICROINCHES LARGEST OUTSIDE DIAMETER; Outside Diameter: 3.360 INCHES MINIMUM AND 3.390 INCHES MAXIMUM IN; Overall Thickness: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. 7 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.