The Shaft Extension,turbine, cataloged under National Stock Number 4940-01-183-1769, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4940-01-183-1769 |
| Primary Part Number | 40850-1 |
| Item Name | Shaft Extension,turbine |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Overall Diameter | 14.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 40850-1 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 40850 | 5/9 Secondary reference Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
NSN 4940-01-183-1769 is a Shaft Extension,turbine, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-01-183-1769 has 1 manufacturer part number on file: 40850-1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-236-1532, 3110-01-668-6419. Verify interchangeability with system specifications before substitution.
Key specifications for 40850-1: Overall Diameter: 14.000 INCHES NOMINAL IN; Overall Length: 18.000 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: SHAFT EXTENSION, TURBINE; End Item Identification: IAGTS. 1 specification is 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.
NSN 4940-01-183-1769 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.