PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21262Disk,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-419-1618 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-419-1618 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-419-1618. Primary manufacturer part number: 21262.
Features
  • Disk,valve — FSC 4820
  • Style Designator: POPPET
  • Material: STEEL CORROSION RESISTING
  • Media for Which Designed: HYDRAULIC FLUID
  • 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 Disk,valve, cataloged under National Stock Number 4820-01-419-1618, is classified within Federal Supply Class 4820 (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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-419-1618
Primary Part Number21262
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Style DesignatorPOPPET
MaterialSTEEL CORROSION RESISTING
Media for Which DesignedHYDRAULIC FLUID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-422-404321262 INTERCHANGEABLE
Setscrew
Raytheon Company Dba Raytheon Co
5935-00-454-693031-842 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
1660-00-762-015021262 INTERCHANGEABLE
Ratchet,single
Hamilton Sundstrand Corporation Dba Collins Aerospace
5330-00-901-074921262 INTERCHANGEABLE
Seal,piston
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3020-01-064-440421262-0001 INTERCHANGEABLE
Pulley,timing Belt
Bae Systems Information & Electronic Systems Integration Inc.
7690-01-168-886631842 INTERCHANGEABLE
Marker,identification
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
6625-01-228-184621262 INTERCHANGEABLE
Converter,signal Data
Mirion Technologies (canberra), Inc.
3010-01-257-071621262 INTERCHANGEABLE
Clutch Assembly,friction
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
4520-01-300-8830 INTERCHANGEABLE
Heating Element,electrical,nonim
4820-01-419-1612 INTERCHANGEABLE
Sleeve,directional Control Linea
Cross-Reference Index
Part NumberManufacturer
21262 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
31842 Canyon Engineering Products, Inc. (USA)
21262 FIND 6 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5305-00-422-4043INTERCHANGEABLE
SETSCREW
21262
5935-00-454-6930INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
31-842
1660-00-762-0150INTERCHANGEABLE
RATCHET,SINGLE
21262
5330-00-901-0749INTERCHANGEABLE
SEAL,PISTON
21262
3020-01-064-4404INTERCHANGEABLE
PULLEY,TIMING BELT
21262-0001
7690-01-168-8866INTERCHANGEABLE
MARKER,IDENTIFICATION
31842
6625-01-228-1846INTERCHANGEABLE
CONVERTER,SIGNAL DATA
21262
3010-01-257-0716INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
21262
4520-01-300-8830INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
4820-01-419-1612INTERCHANGEABLE
SLEEVE,DIRECTIONAL CONTROL LINEA
4820-01-419-1614INTERCHANGEABLE
SEAT,VALVE
31841
4820-01-419-1678INTERCHANGEABLE
PISTON,VALVE

Frequently Asked Questions

What is NSN 4820-01-419-1618?

NSN 4820-01-419-1618 is a Disk,valve, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-419-1618?

NSN 4820-01-419-1618 has 3 cross-referenced part numbers: 21262 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 31842 (Canyon Engineering Products, Inc.), 21262 FIND 6 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-419-1618?

There are 12 known substitutes for 4820-01-419-1618: 5305-00-422-4043, 5935-00-454-6930, 1660-00-762-0150 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21262?

Key specifications for 21262: Style Designator: POPPET; Material: STEEL CORROSION RESISTING; End Item Identification: SEAWOLF CLASS SSN; Media for Which Designed: HYDRAULIC FLUID. 4 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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