PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D5173Valve,diaphragm,stop

Henry Technologies, Inc. · NSN 4820-01-269-9503 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-269-9503 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-269-9503. Primary manufacturer part number: D5173.
Features
  • Valve,diaphragm,stop — FSC 4820
  • Connection Style: SOCKET (TUBE) ALL ENDS
  • Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Material: COPPER ALLOY BODY
  • Valve Operation Method: MANUAL
  • Material: PLASTIC POLYAMIDE NYLON SEAT
  • Media for Which Designed: REFRIGERANT 12 FIRST RESPONSE
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-269-9503, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Henry Technologies, Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN4820-01-269-9503
Primary Part NumberD5173
Item NameValve,diaphragm,stop
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHenry Technologies, Inc.
StatusACTIVE
Connection StyleSOCKET (TUBE) ALL ENDS
Maximum Operating Temp275.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialCOPPER ALLOY BODY
Valve Operation MethodMANUAL
MaterialPLASTIC POLYAMIDE NYLON SEAT
Media for Which DesignedREFRIGERANT 12 FIRST RESPONSE
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialPLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE
Operating Pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Media for Which DesignedREFRIGERANT 22 SECOND RESPONSE
Style DesignatorSTRAIGHT THRU
Media for Which DesignedREFRIGERANT R-502 THIRD RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-064-0767 INTERCHANGEABLE
Resistor,fixed,composition
5315-00-198-5975MS24692-253 INTERCHANGEABLE
Pin,tapered,plain
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5935-00-259-6980 INTERCHANGEABLE
Jack Assembly,tip
5950-00-330-53687608140 INTERCHANGEABLE
Coil,radio Frequency
Us Army Aviation and Missile Command
2520-00-378-11875173 INTERCHANGEABLE
Gear
Abm Equipment, Llc
5305-00-445-85205305AC1-000 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
5935-00-552-4008747997 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Rms - Mitchel Field
6145-00-689-93375383 INTERCHANGEABLE
Cable,power,electrical
Janor Wire & Cable Corp
5935-00-811-7243 INTERCHANGEABLE
Connector,receptacle,electrical
5915-00-863-41932073542-0701 INTERCHANGEABLE
Filter,low Pass
Rex Systems Incorporated Dba Rex Systems Inc
Cross-Reference Index
Part NumberManufacturer
D5173 Henry Technologies, Inc. (USA)
5173 Henry Technologies, Inc. (USA)
Related Parts
5905-00-064-0767INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5315-00-198-5975INTERCHANGEABLE
PIN,TAPERED,PLAIN
MS24692-253
5935-00-259-6980INTERCHANGEABLE
JACK ASSEMBLY,TIP
5950-00-330-5368INTERCHANGEABLE
COIL,RADIO FREQUENCY
7608140
2520-00-378-1187INTERCHANGEABLE
GEAR
5173
5305-00-445-8520INTERCHANGEABLE
SCREW,MACHINE
5305AC1-000
5935-00-552-4008INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
747997
6145-00-689-9337INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
5383
5935-00-811-7243INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5915-00-863-4193INTERCHANGEABLE
FILTER,LOW PASS
2073542-0701
5330-01-243-4667INTERCHANGEABLE
GASKET
5173
4510-01-250-1969INTERCHANGEABLE
BULB,FLUSH,WATER CLOSET TANK
5173

Frequently Asked Questions

What is NSN 4820-01-269-9503?

NSN 4820-01-269-9503 is a Valve,diaphragm,stop, manufactured by Henry Technologies, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-269-9503?

NSN 4820-01-269-9503 has 2 cross-referenced part numbers: D5173 (Henry Technologies, Inc.), 5173 (Henry Technologies, Inc.).

What NSN replaces 4820-01-269-9503?

There are 12 known substitutes for 4820-01-269-9503: 5905-00-064-0767, 5315-00-198-5975, 5935-00-259-6980 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D5173?

Key specifications for D5173: Connection Style: SOCKET (TUBE) ALL ENDS; Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF; Material: COPPER ALLOY BODY; Valve Operation Method: MANUAL. 13 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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