The Ring,externally Threaded, cataloged under National Stock Number 5365-01-172-2785, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-01-172-2785 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | NOT INCLUDED |
| Chamfer Length | 0.031 INCHES NOMINAL IN |
| Bore Edge Process | CHAMFERED |
| Drive Type | SLOTTED FACE |
| Process End Location | BOTH ENDS |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 2 SLOTS |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 180.0 |
| Thread Size | 2.125-16 |
| Screw Thread Series Designator | UN |
| Chamfer Angle in Deg | 45.0 |
| Depth | 0.125 INCHES NOMINAL IN |
| Width | 0.250 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Bore Diameter | 1.406 INCHES NOMINAL IN |
| Material | COPPER ALLOY 903 |
| 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 |
|---|---|
| 2641-807-01 ITEM 18 | 3/2 Design control — primary reference U.S. Government activity |
| 845-4558780 ITEM 13 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5365-01-172-2785 is a Ring,externally Threaded, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
Key specifications for 5365-01-172-2785: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: NOT INCLUDED; Chamfer Length: 0.031 INCHES NOMINAL IN; Bore Edge Process: CHAMFERED. 20 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.