PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21126-1002-1Piston,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4810-01-418-4291 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-418-4291 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-418-4291. Primary manufacturer part number: 21126-1002-1.
Features
  • Piston,valve — FSC 4810
  • Valve Model Number for Which Designed: P/N 21126-001
  • Valve Design Control Activity: 78062
  • Material: STEEL COMP 416
  • Valve Type for Which Designed: DIRECTIONAL CONTROL LINEAR
  • Valve Size for Which Designed: 1.000 INCHES IN
  • 3 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 416 construction
General Description

The Piston,valve, cataloged under National Stock Number 4810-01-418-4291, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 5 verified specifications, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-01-418-4291
Primary Part Number21126-1002-1
Item NamePiston,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Valve Model Number for Which DesignedP/N 21126-001
Valve Design Control Activity78062
MaterialSTEEL COMP 416
Valve Type for Which DesignedDIRECTIONAL CONTROL LINEAR
Valve Size for Which Designed1.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5955-00-060-7542 INTERCHANGEABLE
Crystal Unit,quartz
6210-00-152-3872 INTERCHANGEABLE
Light,indicator
9540-00-251-2593 INTERCHANGEABLE
Angle,structural
2990-00-588-41311912 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
6150-01-035-074121126 INTERCHANGEABLE
Bus,conductor
Methode Electronics Inc Div Power Solutions Group
3510-01-166-88032-1126 INTERCHANGEABLE
Brake Rotor
Maytag Corporation Dba Maytag Appliancessales
5330-01-211-301621126 INTERCHANGEABLE
Gasket
Industrial Technologies and Services Llc
5306-01-213-971921126 INTERCHANGEABLE
Screw
Parker Hannifin Corporation Div Hydraulic Systems Division
2640-01-283-6978211-26 INTERCHANGEABLE
Valve,pneumatic Tire
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
6105-01-293-768621126 INTERCHANGEABLE
Motor,alternating Current
Scott and Fetzer Co the Wayne Home Equipment Div
Cross-Reference Index
Part NumberManufacturer
21126 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21126-1002-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21126-22 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5955-00-060-7542INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
6210-00-152-3872INTERCHANGEABLE
LIGHT,INDICATOR
9540-00-251-2593INTERCHANGEABLE
ANGLE,STRUCTURAL
2990-00-588-4131INTERCHANGEABLE
MUFFLER,EXHAUST
1912
6150-01-035-0741INTERCHANGEABLE
BUS,CONDUCTOR
21126
3510-01-166-8803INTERCHANGEABLE
BRAKE ROTOR
2-1126
5330-01-211-3016INTERCHANGEABLE
GASKET
21126
5306-01-213-9719INTERCHANGEABLE
SCREW
21126
2640-01-283-6978INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
211-26
6105-01-293-7686INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
21126
3040-01-418-3407INTERCHANGEABLE
SHAFT,SHOULDERED

Frequently Asked Questions

What is NSN 4810-01-418-4291?

NSN 4810-01-418-4291 is a Piston,valve, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-01-418-4291?

NSN 4810-01-418-4291 has 3 cross-referenced part numbers: 21126 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21126-1002-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21126-22 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4810-01-418-4291?

There are 11 known substitutes for 4810-01-418-4291: 5955-00-060-7542, 6210-00-152-3872, 9540-00-251-2593 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21126-1002-1?

Key specifications for 21126-1002-1: End Item Identification: NAVY WEAPON SYSTEM CODE JG SEAWOLF CLASS SSN; Valve Model Number for Which Designed: P/N 21126-001; Valve Design Control Activity: 78062; Material: STEEL COMP 416. 6 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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