PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21170-850-1Sleeve and Slide,directional Con

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-418-0049 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-418-0049 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-418-0049. Primary manufacturer part number: 21170-850-1.
Features
  • Sleeve and Slide,directional Con — FSC 4820
  • Slide Material: STEEL
  • Sleeve Material: STEEL
  • Valve Design Control Activity: 78062
  • 3 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Sleeve and Slide,directional Con, cataloged under National Stock Number 4820-01-418-0049, 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 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
NSN4820-01-418-0049
Primary Part Number21170-850-1
Item NameSleeve and Slide,directional Con
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Slide MaterialSTEEL
Sleeve MaterialSTEEL
Valve Design Control Activity78062
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5935-00-075-700810279478 INTERCHANGEABLE
Adapter,connector
Us Army Aviation and Missile Command
5330-00-210-5294530928 INTERCHANGEABLE
Gasket,push Rod Hou
Sealcraft Corporation
4810-00-343-5282211705 INTERCHANGEABLE
Seat,valve
Hydro-Aire Aerospace Corp
4320-00-470-638621171 INTERCHANGEABLE
Pump,rotary
Clayton Manufacturing Company
4820-00-969-1931211705 INTERCHANGEABLE
Poppet,reception
Products Support, Llc Dba Vitesse Systems - Jessup, Md
5950-01-007-9314989112-33B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
4510-01-263-0096 INTERCHANGEABLE
Drain,lavatory
5975-01-282-882521170 INTERCHANGEABLE
Adapter,clevis
Science Applications International Corporation
4820-01-418-004821170-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
2640-01-429-628221-170 INTERCHANGEABLE
Valve,pneumatic Tire
Myers Tire Supply Distribution Inc Div Akron Branch
Cross-Reference Index
Part NumberManufacturer
21170-5 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21170-850-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21170 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
5935-00-075-7008INTERCHANGEABLE
ADAPTER,CONNECTOR
10279478
5330-00-210-5294INTERCHANGEABLE
GASKET,PUSH ROD HOU
530928
4810-00-343-5282INTERCHANGEABLE
SEAT,VALVE
211705
4320-00-470-6386INTERCHANGEABLE
PUMP,ROTARY
21171
4820-00-969-1931INTERCHANGEABLE
POPPET,RECEPTION
211705
5950-01-007-9314INTERCHANGEABLE
COIL,RADIO FREQUENCY
989112-33B
4510-01-263-0096INTERCHANGEABLE
DRAIN,LAVATORY
5975-01-282-8825INTERCHANGEABLE
ADAPTER,CLEVIS
21170
4820-01-418-0048INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21170-001
2640-01-429-6282INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
21-170
5305-01-547-8842INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
21170

Frequently Asked Questions

What is NSN 4820-01-418-0049?

NSN 4820-01-418-0049 is a Sleeve and Slide,directional Con, 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 4820-01-418-0049?

NSN 4820-01-418-0049 has 3 cross-referenced part numbers: 21170-5 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21170-850-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21170 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-418-0049?

There are 11 known substitutes for 4820-01-418-0049: 5935-00-075-7008, 5330-00-210-5294, 4810-00-343-5282 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21170-850-1?

Key specifications for 21170-850-1: Slide Material: STEEL; End Item Identification: SEAWOLF CLASS SSN; Sleeve Material: STEEL; Valve Design Control Activity: 78062. 5 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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