PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21216-1001-1Piston,valve

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-476-3727 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-476-3727 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-476-3727. Primary manufacturer part number: 21216-1001-1.
Features
  • Piston,valve — FSC 4820
  • Valve Size for Which Designed: 3.000 INCHES IN
  • Valve Model Number for Which Designed: 21216
  • Valve Design Control Activity: 78062
  • Material: STEEL COMP 416
  • 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 4820-01-476-3727, 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 4 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-476-3727
Primary Part Number21216-1001-1
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Valve Size for Which Designed3.000 INCHES IN
Valve Model Number for Which Designed21216
Valve Design Control Activity78062
MaterialSTEEL COMP 416
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3655-00-066-8077 INTERCHANGEABLE
Heat E,changer
5306-00-167-357521216 INTERCHANGEABLE
Bolt,eye
Northrop Grumman Systems Corporation
5330-00-218-23112-209AX2029B INTERCHANGEABLE
Gasket Set
Industrial Technologies and Services Llc
2910-00-424-336521216 INTERCHANGEABLE
Venturi,carburetor
Briggs and Stratton Corp
5330-00-580-852911907 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5930-00-614-5284 INTERCHANGEABLE
Switch,toggle
6605-00-952-4497312ST INTERCHANGEABLE
Standard Weight Too
Troemner Llc
4720-01-246-804021216 INTERCHANGEABLE
Hose,preformed
Gates Corporation
9340-01-290-93582-12-16 INTERCHANGEABLE
Tubing,glass
Fulton Boiler Works Inc
4820-01-412-522121216-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21216 FIND 27 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21216-1001-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21216 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
3655-00-066-8077INTERCHANGEABLE
HEAT E,CHANGER
5306-00-167-3575INTERCHANGEABLE
BOLT,EYE
21216
5330-00-218-2311INTERCHANGEABLE
GASKET SET
2-209AX2029B
2910-00-424-3365INTERCHANGEABLE
VENTURI,CARBURETOR
21216
5330-00-580-8529INTERCHANGEABLE
SEAL,PLAIN ENCASED
11907
5930-00-614-5284INTERCHANGEABLE
SWITCH,TOGGLE
6605-00-952-4497INTERCHANGEABLE
STANDARD WEIGHT TOO
312ST
4720-01-246-8040INTERCHANGEABLE
HOSE,PREFORMED
21216
9340-01-290-9358INTERCHANGEABLE
TUBING,GLASS
2-12-16
4820-01-412-5221INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21216-001
4730-01-500-9677INTERCHANGEABLE
RESTRICTOR UNIT,FLUID FLOW
JEDA1875160D
5935-01-543-4216INTERCHANGEABLE
ADAPTER,CONNECTOR
21216

Frequently Asked Questions

What is NSN 4820-01-476-3727?

NSN 4820-01-476-3727 is a Piston,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 4820-01-476-3727?

NSN 4820-01-476-3727 has 3 cross-referenced part numbers: 21216 FIND 27 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21216-1001-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21216 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 4820-01-476-3727?

There are 12 known substitutes for 4820-01-476-3727: 3655-00-066-8077, 5306-00-167-3575, 5330-00-218-2311 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21216-1001-1?

Key specifications for 21216-1001-1: Valve Size for Which Designed: 3.000 INCHES IN; Overall Length: 10.400 INCHES NOMINAL IN; Valve Model Number for Which Designed: 21216; 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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