PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1385 P/L 2385C226 AND C3650Valve,safety Relief

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-270-6414 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-270-6414 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-270-6414. Primary manufacturer part number: 1385 P/L 2385C226 AND C3650.
Features
  • Valve,safety Relief — FSC 4820
  • Furnished Items and Quantity: 2 NUT AND 2 TAILPIECE AND 1 LEVER
  • Media for Which Designed: AIR FIRST RESPONSE
  • Media for Which Designed: WATER, FRESH SECOND RESPONSE
  • Bonnet Attachment Method: UNION
  • Style Designator: ANGLE
  • Connection Style: STREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
  • Valve Operation Method: AUTOMATIC OR MANUAL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-270-6414, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-270-6414
Primary Part Number1385 P/L 2385C226 AND C3650
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Furnished Items and Quantity2 NUT AND 2 TAILPIECE AND 1 LEVER
Media for Which DesignedAIR FIRST RESPONSE
Media for Which DesignedWATER, FRESH SECOND RESPONSE
Bonnet Attachment MethodUNION
Style DesignatorANGLE
Connection StyleSTREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
Valve Operation MethodAUTOMATIC OR MANUAL
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
Disk Loading MethodSPRING
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Bonnet TypeINSIDE SCREW
Flow Control DeviceDISK
Nominal Outside Diameter Tube Accommodated0.312 INCHES ALL ENDS IN
MaterialNICKEL ALLOY SEAT
MaterialNICKEL ALLOY STEM
Adjustable Pressure Range+65.0 TO 100.0 POUNDS PER SQUARE INCH LBS
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialCOPPER ALLOY BODY
MaterialRUBBER FLOW CONTROL DEVICE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4820-01-197-3710YB2385G224 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-262-7515C3650 1385 3/8 180T300PSI INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-262-8427YB238F223 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
4820-01-282-8463YB2385C224 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-312-72901385 P/L2385D222 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-317-274420277735 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-354-4737E3650 INTERCHANGEABLE
Valve,relief,pressure and Temper
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
C3650 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
C3650 1385 P/L 2385C226 1/2IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1385 P/L 2385C226 AND C3650 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-197-3710INTERCHANGEABLE
VALVE,SAFETY RELIEF
YB2385G224
4820-01-262-7515INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3650 1385 3/8 180T300PSI
4820-01-262-8427INTERCHANGEABLE
VALVE,SAFETY RELIEF
YB238F223
4820-01-268-8386INTERCHANGEABLE
VALVE,SAFETY RELIEF
1385PL4149-4126-65T100PSI
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
4820-01-354-4737INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
E3650

Frequently Asked Questions

What is NSN 4820-01-270-6414?

NSN 4820-01-270-6414 is a Valve,safety Relief, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-270-6414?

NSN 4820-01-270-6414 has 3 cross-referenced part numbers: C3650 (Leslie Controls, Inc. Dba Leslie Controls Inc), C3650 1385 P/L 2385C226 1/2IN (Leslie Controls, Inc. Dba Leslie Controls Inc), 1385 P/L 2385C226 AND C3650 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-270-6414?

There are 8 known substitutes for 4820-01-270-6414: 4820-01-197-3710, 4820-01-262-7515, 4820-01-262-8427 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1385 P/L 2385C226 AND C3650?

Key specifications for 1385 P/L 2385C226 AND C3650: Furnished Items and Quantity: 2 NUT AND 2 TAILPIECE AND 1 LEVER; Media for Which Designed: AIR FIRST RESPONSE; Media for Which Designed: WATER, FRESH SECOND RESPONSE; Bonnet Attachment Method: UNION. 19 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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