PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

YB238F223Valve,safety Relief

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-262-8427 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-262-8427 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-262-8427. Primary manufacturer part number: YB238F223.
Features
  • Valve,safety Relief — FSC 4820
  • Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS
  • Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Style Designator: ANGLE
  • Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Bonnet Attachment Method: UNION
  • Material: COPPER ALLOY BODY
  • Flow Control Device: DISK
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-262-8427, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-262-8427
Primary Part NumberYB238F223
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusCANCELLED
Connection StyleSOCKET WITH BRAZING RING (TUBE) ALL ENDS
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
Style DesignatorANGLE
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bonnet Attachment MethodUNION
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Media for Which DesignedWATER, FRESH SECOND RESPONSE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MaterialSTEEL CORROSION RESISTING STEM
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Nominal Outside Diameter Tube Accommodated1.250 INCHES ALL ENDS IN
Bonnet TypeINSIDE SPRING
Adjustable Pressure Range+20.0 TO 35.0 POUNDS PER SQUARE INCH LBS
MaterialSTEEL CORROSION RESISTING SEAT
Media for Which DesignedAIR FIRST RESPONSE
Disk Loading MethodSPRING
Furnished Items and Quantity2 NUT AND 2 TAILPIECE AND 1 LEVER
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-080-738119871-2 INTERCHANGEABLE
Gasket
Sta-Rite Products
2805-00-569-897319-87-1 INTERCHANGEABLE
Plug Cup Camshaft,f
Dresser Industries Inc Leroi Div
4820-01-197-3710YB2385G224 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-251-3123CV9-S4501-026-20 INTERCHANGEABLE
Seat,valve
Naval Ship Systems Command
4820-01-251-529019871-18 INTERCHANGEABLE
Stem,fluid Valve
Crane Co Div Valve Div
4820-01-251-5322CV9-S4501-026-8 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
4820-01-262-7515C3650 1385 3/8 180T300PSI INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-268-83861385PL4149-4126-65T100PSI INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-270-64141385 P/L 2385C226 AND C3650 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-282-8463YB2385C224 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
C-3650 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1385PL2385F 20T35PSI C3650 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1385PL2385K44F 20T35PSI Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
19871-30 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
YB238F223 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
19871-30 Crane Co Div Valve Div (USA)
19871 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
CV9S4501-026 Naval Ship Systems Command (USA)
19871 Crane Co Div Valve Div (USA)
Related Parts
5330-00-080-7381INTERCHANGEABLE
GASKET
19871-2
2805-00-569-8973INTERCHANGEABLE
PLUG CUP CAMSHAFT,F
19-87-1
4820-01-197-3710INTERCHANGEABLE
VALVE,SAFETY RELIEF
YB2385G224
4820-01-251-3123INTERCHANGEABLE
SEAT,VALVE
CV9-S4501-026-20
4820-01-251-5290INTERCHANGEABLE
STEM,FLUID VALVE
19871-18
4820-01-251-5322INTERCHANGEABLE
DISK,VALVE
CV9-S4501-026-8
4820-01-262-7515INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3650 1385 3/8 180T300PSI
4820-01-268-8386INTERCHANGEABLE
VALVE,SAFETY RELIEF
1385PL4149-4126-65T100PSI
4820-01-270-6414INTERCHANGEABLE
VALVE,SAFETY RELIEF
1385 P/L 2385C226 AND C3650
4820-01-282-8463INTERCHANGEABLE
VALVE,SAFETY RELIEF
YB2385C224
4820-01-312-7290INTERCHANGEABLE
VALVE,SAFETY RELIEF
1385 P/L2385D222
4820-01-317-2744INTERCHANGEABLE
VALVE,SAFETY RELIEF
20277735

Frequently Asked Questions

What is NSN 4820-01-262-8427?

NSN 4820-01-262-8427 is a Valve,safety Relief, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-262-8427?

NSN 4820-01-262-8427 has 9 cross-referenced part numbers: C-3650 (Leslie Controls, Inc. Dba Leslie Controls Inc), 1385PL2385F 20T35PSI C3650 (Leslie Controls, Inc. Dba Leslie Controls Inc), 1385PL2385K44F 20T35PSI (Leslie Controls, Inc. Dba Leslie Controls Inc), 19871-30 (Terry Corp of Connecticut Sub of Ingersoll-Rand Co), YB238F223 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 4 more.

What NSN replaces 4820-01-262-8427?

There are 12 known substitutes for 4820-01-262-8427: 5330-00-080-7381, 2805-00-569-8973, 4820-01-197-3710 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of YB238F223?

Key specifications for YB238F223: Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS; Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF; Style Designator: ANGLE; Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-262-8427 still in active supply?

NSN 4820-01-262-8427 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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