PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21185-1003-1Piston,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4810-01-495-2575 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-495-2575 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-495-2575. Primary manufacturer part number: 21185-1003-1.
Features
  • Piston,valve — FSC 4810
  • Valve Design Control Activity: 78062
  • Material: STEEL CORROSION RESISTING
  • 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 Corrosion Resisting construction
General Description

The Piston,valve, cataloged under National Stock Number 4810-01-495-2575, 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 2 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-01-495-2575
Primary Part Number21185-1003-1
Item NamePiston,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Valve Design Control Activity78062
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4730-00-230-939521834 INTERCHANGEABLE
Sleeve,flared,tube Fitting
Triumph Controls, Llc Dba Triumph Controls, Llc
5310-00-424-324321834 INTERCHANGEABLE
Washer,flat
Mitsubishi Caterpillar Forklift America, Inc
2520-00-562-07061K2811 INTERCHANGEABLE
Collar,clutch Shift
Caterpillar Inc Div Caterpillar Defense
5325-01-239-934821834 INTERCHANGEABLE
Ring,retaining
The Oilgear Company Dba Jiffy Lube 213 Div Oilgear
5340-01-418-851621834 INTERCHANGEABLE
Plate,mounting
Elbitamerica, Inc.
5360-01-495-389721834 FIND 20 INTERCHANGEABLE
Spring,helical,compression
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5306-01-707-736021834-FIND NO-57 INTERCHANGEABLE
Bolt,internal Wrenching
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-711-0052 INTERCHANGEABLE
Valve Assembly
Cross-Reference Index
Part NumberManufacturer
21834 FIND 14 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21185-1003-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21834 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
4730-00-230-9395INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
21834
5310-00-424-3243INTERCHANGEABLE
WASHER,FLAT
21834
2520-00-562-0706INTERCHANGEABLE
COLLAR,CLUTCH SHIFT
1K2811
5325-01-239-9348INTERCHANGEABLE
RING,RETAINING
21834
5340-01-418-8516INTERCHANGEABLE
PLATE,MOUNTING
21834
5360-01-495-3897INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21834 FIND 20
5306-01-707-7360INTERCHANGEABLE
BOLT,INTERNAL WRENCHING
21834-FIND NO-57
4820-01-711-0052INTERCHANGEABLE
VALVE ASSEMBLY

Frequently Asked Questions

What is NSN 4810-01-495-2575?

NSN 4810-01-495-2575 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 4810-01-495-2575?

NSN 4810-01-495-2575 has 3 cross-referenced part numbers: 21834 FIND 14 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21185-1003-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21834 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4810-01-495-2575?

There are 8 known substitutes for 4810-01-495-2575: 4730-00-230-9395, 5310-00-424-3243, 2520-00-562-0706 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21185-1003-1?

Key specifications for 21185-1003-1: Valve Design Control Activity: 78062; Material: STEEL CORROSION RESISTING. 2 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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