The Shaft Assembly,coupling, cataloged under National Stock Number 1650-00-166-4838, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 2 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. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-166-4838 |
| Primary Part Number | 86250 |
| Item Name | Shaft Assembly,coupling |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| General Characteristics Item Description | COPPER-BERYLLIUM ALLOY PER QQ-C-530,1.906 IN. LG,LARGE END DATA16 TEETH 30 DEG PRESSURE ANGLE 0.8000 PITCH DIA,SMALL END DATA 12TEETH 30 DEG PRESSURE ANGLE 0.6000 PITCH DIA,HARDNESS RATINGROCKWELL C36 TO 42 IN |
| Functional Description | USED ON HYDRAULIC SYSTEM,ACFT |
| 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 |
|---|---|
| 86250 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 1650-00-166-4838 is a Shaft Assembly,coupling, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-166-4838 has 1 manufacturer part number on file: 86250 (Eaton Aerospace, Llc Dba Jackson South).
4 possible matches (shared part number, not a government interchangeability claim): 5935-00-578-2948, 4710-01-276-0558, 5998-01-294-5194. Verify interchangeability with system specifications before substitution.
Key specifications for 86250: General Characteristics Item Description: COPPER-BERYLLIUM ALLOY PER QQ-C-530,1.906 IN. LG,LARGE END DATA16 TEETH 30 DEG PRESSURE ANGLE 0.8000 PITCH DIA,SMALL END DATA 12TEETH 30 DEG PRESSURE ANGLE 0.6000 PITCH DIA,HARDNESS RATINGROCKWELL C36 TO 42 IN; Functional Description: USED ON HYDRAULIC SYSTEM,ACFT. 2 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.