The Ring,externally Threaded, cataloged under National Stock Number 5365-00-616-8281, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5365-00-616-8281 |
| Primary Part Number | 6168281 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Bore Annular Internal Serration | NOT INCLUDED |
| Beveled Thread | NOT INCLUDED |
| Bore Edge Process | ROUNDED |
| Drive Type | SLOTTED FACE |
| End Radius | 0.062 INCHES NOMINAL IN |
| Process End Location | BOTH ENDS |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Setscrew Locking Notch | NOT INCLUDED |
| Accommodation Type and Quantity | 4 SLOTS |
| Casehardening Indicator | NOT CASEHARDENED |
| Angle Between Accommodations in Deg | 90.0 |
| Thread Size | 3.750-12 |
| Screw Thread Series Designator | UN |
| Surface Treatment | OXIDE |
| Depth | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Width | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Bore Diameter | 2.896 INCHES MINIMUM AND 2.916 INCHES MAXIMUM 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 |
|---|---|
| 6168281 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5365-00-616-8281 is a Ring,externally Threaded, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-616-8281 has 1 manufacturer part number on file: 6168281 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 6168281: Bore Annular Internal Serration: NOT INCLUDED; Beveled Thread: NOT INCLUDED; Bore Edge Process: ROUNDED; Drive Type: SLOTTED FACE. 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.