PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21223Stem and Seat Assembly

Eaton Aerospace Llc · NSN 1650-00-171-3406 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-171-3406 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-171-3406. Primary manufacturer part number: 21223.
Features
  • Stem and Seat Assembly — FSC 1650
  • General Characteristics Item Description: VITON O-RINGS; 0.875 IN. OD; 0.438 IN. ID; DRILLED HOLE THRU SLEEVE END,0.063 IN. DIA,0.100 IN. BY 90 DEG COUNTERSINK IN
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Stem and Seat Assembly, cataloged under National Stock Number 1650-00-171-3406, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Eaton Aerospace Llc. Government technical data includes 1 verified specification, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-171-3406
Primary Part Number21223
Item NameStem and Seat Assembly
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerEaton Aerospace Llc
StatusACTIVE
General Characteristics Item DescriptionVITON O-RINGS; 0.875 IN. OD; 0.438 IN. ID; DRILLED HOLE THRU SLEEVE END,0.063 IN. DIA,0.100 IN. BY 90 DEG COUNTERSINK IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-232-615821223 INTERCHANGEABLE
Switch,rotary
Raytheon Company Dba Raytheon
7320-00-390-1600 INTERCHANGEABLE
Knife,pastry
1680-00-534-7002 INTERCHANGEABLE
Sleeve,tube
3020-00-591-2674217D INTERCHANGEABLE
Pulley,groove
Industrial Technologies and Services Llc
5910-00-819-4914 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5998-01-042-807721223 INTERCHANGEABLE
Circuit Card Assembly
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
1680-01-043-8759PM21223 INTERCHANGEABLE
Trigger,phenolic
Mason Electric Co. Dba Mason Controls
5305-01-074-968221223 INTERCHANGEABLE
Screw,cap,hexagon Head
Lawson Products, Inc.
5999-01-124-192621223 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5136-01-443-349521223 INTERCHANGEABLE
Tap,thread Cutting
Time Fastener Co Inc
Cross-Reference Index
Part NumberManufacturer
21223 PRIMARY Eaton Aerospace Llc (USA)
Related Parts
5930-00-232-6158INTERCHANGEABLE
SWITCH,ROTARY
21223
7320-00-390-1600INTERCHANGEABLE
KNIFE,PASTRY
1680-00-534-7002INTERCHANGEABLE
SLEEVE,TUBE
3020-00-591-2674INTERCHANGEABLE
PULLEY,GROOVE
217D
5910-00-819-4914INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5998-01-042-8077INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21223
1680-01-043-8759INTERCHANGEABLE
TRIGGER,PHENOLIC
PM21223
5305-01-074-9682INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
21223
5999-01-124-1926INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
21223
5136-01-443-3495INTERCHANGEABLE
TAP,THREAD CUTTING
21223

Frequently Asked Questions

What is NSN 1650-00-171-3406?

NSN 1650-00-171-3406 is a Stem and Seat Assembly, manufactured by Eaton Aerospace Llc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-171-3406?

NSN 1650-00-171-3406 has 1 cross-referenced part number: 21223 (Eaton Aerospace Llc).

What NSN replaces 1650-00-171-3406?

There are 10 known substitutes for 1650-00-171-3406: 5930-00-232-6158, 7320-00-390-1600, 1680-00-534-7002 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21223?

Key specifications for 21223: General Characteristics Item Description: VITON O-RINGS; 0.875 IN. OD; 0.438 IN. ID; DRILLED HOLE THRU SLEEVE END,0.063 IN. DIA,0.100 IN. BY 90 DEG COUNTERSINK 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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