PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Valves / 4820-00-243-4815

21308Valve,y

Crane Co Div Valve Div · NSN 4820-00-243-4815 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-243-4815 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-243-4815. Primary manufacturer part number: 21308.
⌀0.937 INCHES FIRST END IN GATE VALVE PROFILE
4820-00-243-4815 — No Item Name Available illustration
Features
  • Valve,y — FSC 4820
  • Bonnet Attachment Method: BOLTED
  • Material: STEEL CORROSION RESISTING STEM
  • Connection Type: FLANGE FIRST END
  • Bolt Hole Nominal Diameter: 0.937 INCHES FIRST END IN
  • Face to Face Distance: 18.000 INCHES IN
  • Raised Face Nominal Diameter: 6.875 INCHES FIRST END IN
  • Nominal Thickness: 1.500 INCHES FIRST END IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,y, cataloged under National Stock Number 4820-00-243-4815, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crane Co Div Valve Div. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-00-243-4815
Primary Part Number21308
Item NameValve,y
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCrane Co Div Valve Div
StatusACTIVE
Bonnet Attachment MethodBOLTED
MaterialSTEEL CORROSION RESISTING STEM
Connection TypeFLANGE FIRST END
Bolt Hole Nominal Diameter0.937 INCHES FIRST END IN
Face to Face Distance18.000 INCHES IN
Raised Face Nominal Diameter6.875 INCHES FIRST END IN
Nominal Thickness1.500 INCHES FIRST END IN
Nominal Outside Diameter10.000 INCHES FIRST END IN
Bolt Circle Nominal Diameter7.875 INCHES FIRST END IN
Flange ShapeROUND WITH HOLES FIRST END
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY THE REPLY TO PAC ADZH
Bolt Hole Quantity4 FIRST END
Flange Face DesignRAISED STRAIGHT FIRST END
MaterialSTEEL BODY
MaterialCOBALT ALLOY SEAT
Style DesignatorSTRAIGHT THRU Y-PATTERN
Valve Operation MethodMANUAL
Raised Face Nominal Height0.250 INCHES FIRST END IN
Flow Control DeviceDISK
Bonnet TypeOUTSIDE SCREW-YOKE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 11
5999-00-422-849121-308 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
9540-00-585-7202 INTERCHANGEABLE
Angle,structural
6145-00-643-2107 INTERCHANGEABLE
Cable,radio Frequency
2910-00-930-16577016001 INTERCHANGEABLE
Carburetor,float
General Motors Llc Dba General Motors Llc
5950-01-015-885621308 INTERCHANGEABLE
Transformer,power
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
3120-01-272-327521308 INTERCHANGEABLE
Bearing,sleeve
Parker Hannifin Corp Dba Pneutronics
4810-01-430-415521308-1004-1 INTERCHANGEABLE
Sleeve,drive,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-430-416121308-1003-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-469-266821308-001 INTERCHANGEABLE
Valve,dir Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
1005-01-503-002021308 INTERCHANGEABLE
Sling
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
21308 Crane Co Div Valve Div (USA)
Related Parts
5999-00-422-8491INTERCHANGEABLE
CONTACT,ELECTRICAL
21-308
9540-00-585-7202INTERCHANGEABLE
ANGLE,STRUCTURAL
6145-00-643-2107INTERCHANGEABLE
CABLE,RADIO FREQUENCY
2910-00-930-1657INTERCHANGEABLE
CARBURETOR,FLOAT
7016001
5950-01-015-8856INTERCHANGEABLE
TRANSFORMER,POWER
21308
3120-01-272-3275INTERCHANGEABLE
BEARING,SLEEVE
21308
4810-01-430-4155INTERCHANGEABLE
SLEEVE,DRIVE,VALVE
21308-1004-1
4810-01-430-4161INTERCHANGEABLE
PISTON,VALVE
21308-1003-1
4820-01-469-2668INTERCHANGEABLE
VALVE,DIR CONTROL
21308-001
1005-01-503-0020INTERCHANGEABLE
SLING
21308
4930-01-528-9562INTERCHANGEABLE
CONTROL,DAMPER
21308

Frequently Asked Questions

What is NSN 4820-00-243-4815?

NSN 4820-00-243-4815 is a Valve,y, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-243-4815?

NSN 4820-00-243-4815 has 1 cross-referenced part number: 21308 (Crane Co Div Valve Div).

What NSN replaces 4820-00-243-4815?

There are 11 known substitutes for 4820-00-243-4815: 5999-00-422-8491, 9540-00-585-7202, 6145-00-643-2107 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21308?

Key specifications for 21308: Bonnet Attachment Method: BOLTED; Material: STEEL CORROSION RESISTING STEM; Connection Type: FLANGE FIRST END; Bolt Hole Nominal Diameter: 0.937 INCHES FIRST END IN. 20 total characteristics are documented in the Federal Logistics Information System.

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