The Ring,externally Threaded, cataloged under National Stock Number 5365-00-121-1002, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 14 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-121-1002 |
| Primary Part Number | 312222 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | NOT INCLUDED |
| Drive Type | DRILLED FACE |
| Diameter | 0.125 INCHES NOMINAL IN |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 2 HOLES |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 180.0 |
| Thread Size | 2.000-20 |
| Screw Thread Series Designator | UN |
| Depth | 0.188 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Bore Diameter | 1.547 INCHES NOMINAL IN |
| Material | STEEL COMP 416 |
| 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 |
|---|---|
| 312222 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 5365-00-121-1002 is a Ring,externally Threaded, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-121-1002 has 1 manufacturer part number on file: 312222 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 3020-00-547-5652. Verify interchangeability with system specifications before substitution.
Key specifications for 312222: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: NOT INCLUDED; Drive Type: DRILLED FACE; Diameter: 0.125 INCHES NOMINAL IN. 14 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.