The Ring,externally Threaded, cataloged under National Stock Number 5365-01-541-6750, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 13 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 | 5365-01-541-6750 |
| Primary Part Number | 4081978 |
| Item Name | Ring,externally Threaded |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Chamfer Length | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Bore Edge Process | CHAMFERED |
| Drive Type | SLOTTED FACE |
| Process End Location | END OPPOSITE DRIVE END |
| Bore Shape | STRAIGHT |
| Thread Direction | RIGHT-HAND |
| Accommodation Type and Quantity | 8 SLOTS |
| Thread Size | 1.1875-12 |
| Screw Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) |
| Depth | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Width | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Bore Diameter | 0.840 INCHES MINIMUM AND 0.850 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 4081978 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5365-01-541-6750 is a Ring,externally Threaded, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-541-6750 has 1 manufacturer part number on file: 4081978 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4081978: Chamfer Length: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN; Bore Edge Process: CHAMFERED; Drive Type: SLOTTED FACE; Overall Length: 1.570 INCHES MINIMUM AND 1.690 INCHES MAXIMUM IN. 13 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.