PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

42252R20Housing,gearbox,kne

Triumph Gear Systems Inc Dba Triumph Gear Systems Inc · NSN 1620-00-001-2466 · FSC 1620 · No Item Name Available
Verified by PartsTable
NSN 1620-00-001-2466 — this item is cataloged by the U.S. Government under National Stock Number 1620-00-001-2466. Primary manufacturer part number: 42252R20.
Features
  • Housing,gearbox,kne — FSC 1620
  • General Characteristics Item Description: ALUMINUM ALLOY MIL-A-21180 A357-T61 CLASS 10,PAINT WHITE EXCEPTMACHINED SURFACES 0.003 IN. MIN THK,11.970 IN. O/A LG,8.147 IN. O/A W,3.380 IN. O/A H,AS NOTED MACHINED SURFACES 63.0 125.0 AND 250.0MICROINCH FINISH,12 MTG HOLES 0.280 IN. MIN TO 0.290 IN. MAX DIA THRU,4 MTG HOLES 0.403 IN. MIN TO 0.410 IN. MAX DIA THRU IN
  • Criticality Code Justification: FEAT
  • 1 verified cross-reference
  • Primary manufacturer: Triumph Gear Systems Inc Dba Triumph Gear Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Housing,gearbox,kne, cataloged under National Stock Number 1620-00-001-2466, is classified within Federal Supply Class 1620 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Triumph Gear Systems Inc Dba Triumph Gear Systems Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1620-00-001-2466
Primary Part Number42252R20
Item NameHousing,gearbox,kne
FSC / FSG1620 / 16 — No Item Name Available
ManufacturerTriumph Gear Systems Inc Dba Triumph Gear Systems Inc
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY MIL-A-21180 A357-T61 CLASS 10,PAINT WHITE EXCEPTMACHINED SURFACES 0.003 IN. MIN THK,11.970 IN. O/A LG,8.147 IN. O/A W,3.380 IN. O/A H,AS NOTED MACHINED SURFACES 63.0 125.0 AND 250.0MICROINCH FINISH,12 MTG HOLES 0.280 IN. MIN TO 0.290 IN. MAX DIA THRU,4 MTG HOLES 0.403 IN. MIN TO 0.410 IN. MAX DIA THRU IN
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
42252R20 PRIMARY Triumph Gear Systems Inc Dba Triumph Gear Systems Inc (USA)
Related Parts in Aircraft Components and Accessories
1620-00-001-2467
HOUSING,GEARBOX,KNE
42252R21
1620-00-001-2468
NO ITEM NAME AVAILABLE
1620-00-001-3929
LEVER ASSEMBLY
1620-00-001-4483
CYLINDER LANDING GE
123L10018-501
1620-00-001-6577
NO ITEM NAME AVAILABLE
1620-00-001-6942
END PLATE,POWER ST
3863009-1
1620-00-003-0391
DRAG BRACE,LANDING GEAR
1620-00-003-0392
DRAG BRACE,LANDING GEAR

Frequently Asked Questions

What is NSN 1620-00-001-2466?

NSN 1620-00-001-2466 is a Housing,gearbox,kne, manufactured by Triumph Gear Systems Inc Dba Triumph Gear Systems Inc, classified under FSC 1620 (No Item Name Available). Status: active.

What are the part numbers for NSN 1620-00-001-2466?

NSN 1620-00-001-2466 has 1 cross-referenced part number: 42252R20 (Triumph Gear Systems Inc Dba Triumph Gear Systems Inc).

What are the specifications of 42252R20?

Key specifications for 42252R20: General Characteristics Item Description: ALUMINUM ALLOY MIL-A-21180 A357-T61 CLASS 10,PAINT WHITE EXCEPTMACHINED SURFACES 0.003 IN. MIN THK,11.970 IN. O/A LG,8.147 IN. O/A W,3.380 IN. O/A H,AS NOTED MACHINED SURFACES 63.0 125.0 AND 250.0MICROINCH FINISH,12 MTG HOLES 0.280 IN. MIN TO 0.290 IN. MAX DIA THRU,4 MTG HOLES 0.403 IN. MIN TO 0.410 IN. MAX DIA THRU IN; Criticality Code Justification: FEAT; Special Features: FORM,FIT,FUNCTION. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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