The Ring,externally Threaded, cataloged under National Stock Number 5365-01-018-5265, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-018-5265 |
| Primary Part Number | 391-2581-003 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Parker Hannifin Corporation Div Cylinder Division |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | INCLUDED |
| Bore Edge Process | ROUNDED |
| Drive Type | DRILLED FACE |
| End Radius | 0.720 INCHES NOMINAL AND 1.000 INCHES NOMINAL IN |
| Diameter | 0.188 INCHES NOMINAL IN |
| Process End Location | BOTH ENDS |
| Thread Location | END OPPOSITE DRIVE END |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 2 HOLES |
| Radius From Geometric Axis to Accommodation | 1.065 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 180.0 |
| Thread Size | 2.750-12 |
| Screw Thread Series Designator | UN |
| Depth | 0.190 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Bore Diameter | 1.440 INCHES NOMINAL IN |
| 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 |
|---|---|
| 391-2581-003 PRIMARY | Parker Hannifin Corporation Div Cylinder Division (USA) |
| Reference | Meaning |
|---|---|
| LA1072 | 5/9 Secondary reference Parker Hannifin Corporation Div Cylinder Division |
NSN 5365-01-018-5265 is a Ring,externally Threaded, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-018-5265 has 1 manufacturer part number on file: 391-2581-003 (Parker Hannifin Corporation Div Cylinder Division).
Key specifications for 391-2581-003: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: INCLUDED; Bore Edge Process: ROUNDED; Drive Type: DRILLED FACE. 21 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.