PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21937-3Backup,feedback,cylinder

Transdigm Inc · NSN 1650-00-496-2092 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-496-2092 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-496-2092. Primary manufacturer part number: 21937-3.
Features
  • Backup,feedback,cylinder — FSC 1650
  • General Characteristics Item Description: ALUMINUM ALLOY,ANODIZED,4.625 IN. LG. 0.875 IN. W IN
  • 3 verified cross-references
  • Primary manufacturer: Transdigm Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Backup,feedback,cylinder, cataloged under National Stock Number 1650-00-496-2092, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Transdigm Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-496-2092
Primary Part Number21937-3
Item NameBackup,feedback,cylinder
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerTransdigm Inc
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY,ANODIZED,4.625 IN. LG. 0.875 IN. W IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4710-00-010-957221937 INTERCHANGEABLE
Tube Assembly,metal
Triumph Controls, Llc Dba Triumph Controls, Llc
4730-00-050-4205AS15001-3P INTERCHANGEABLE
Fitting,lubrication
Sae International Dba Sae International
5330-00-250-2156G42 INTERCHANGEABLE
Gasket
Rieke Corporation Dba Rieke Packaging Systems Div Rieke Packaging Systems
5905-00-497-1067112386-315 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Tdk-Lambda Americas Inc. Div High Power Division
5330-01-138-1334J7N0.103X11.16 INTERCHANGEABLE
Packing,preformed
C. E. Conover & Co., Inc.
4820-01-145-408321937 INTERCHANGEABLE
Piston,valve
Westerbeke Corporation
5965-01-167-320421937-2 INTERCHANGEABLE
Arm,microphone
Astrocom Electronics Inc
6515-01-304-9763401553 INTERCHANGEABLE
Bag,ostomy
Convatec Inc. Div Convatec
Cross-Reference Index
Part NumberManufacturer
21937-2 Transdigm Inc (USA)
21937-3 PRIMARY Transdigm Inc (USA)
21937 Transdigm Inc (USA)
Related Parts
4710-00-010-9572INTERCHANGEABLE
TUBE ASSEMBLY,METAL
21937
4730-00-050-4205INTERCHANGEABLE
FITTING,LUBRICATION
AS15001-3P
5330-00-250-2156INTERCHANGEABLE
GASKET
G42
5905-00-497-1067INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
112386-315
5330-01-138-1334INTERCHANGEABLE
PACKING,PREFORMED
J7N0.103X11.16
4820-01-145-4083INTERCHANGEABLE
PISTON,VALVE
21937
5965-01-167-3204INTERCHANGEABLE
ARM,MICROPHONE
21937-2
6515-01-304-9763INTERCHANGEABLE
BAG,OSTOMY
401553

Frequently Asked Questions

What is NSN 1650-00-496-2092?

NSN 1650-00-496-2092 is a Backup,feedback,cylinder, manufactured by Transdigm Inc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-496-2092?

NSN 1650-00-496-2092 has 3 cross-referenced part numbers: 21937-2 (Transdigm Inc), 21937-3 (Transdigm Inc), 21937 (Transdigm Inc).

What NSN replaces 1650-00-496-2092?

There are 8 known substitutes for 1650-00-496-2092: 4710-00-010-9572, 4730-00-050-4205, 5330-00-250-2156 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21937-3?

Key specifications for 21937-3: General Characteristics Item Description: ALUMINUM ALLOY,ANODIZED,4.625 IN. LG. 0.875 IN. W IN. 1 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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