PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C3459 1384 3/4IN 45T70PSIValve,safety Relief

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-231-2715 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-231-2715 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-231-2715. Primary manufacturer part number: C3459 1384 3/4IN 45T70PSI.
Features
  • Valve,safety Relief — FSC 4820
  • Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Material: NICKEL ALLOY STEM
  • Furnished Items and Quantity: 1 LEVER AND 2 NUT AND 2 TAILPIECE
  • Media for Which Designed: WATER, FRESH SECOND RESPONSE
  • Bonnet Type: INSIDE SCREW
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Stem construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-231-2715, 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 18 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-231-2715
Primary Part NumberC3459 1384 3/4IN 45T70PSI
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Connection StyleSOCKET WITH BRAZING RING (TUBE) ALL ENDS
Nominal Outside Diameter Tube Accommodated0.750 INCHES ALL ENDS IN
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialNICKEL ALLOY STEM
Furnished Items and Quantity1 LEVER AND 2 NUT AND 2 TAILPIECE
Media for Which DesignedWATER, FRESH SECOND RESPONSE
Bonnet TypeINSIDE SCREW
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation MethodAUTOMATIC
Adjustable Pressure Range+45.0 TO 70.0 POUNDS PER SQUARE INCH LBS
MaterialBRONZE BODY
MaterialNICKEL ALLOY SEAT
Bonnet Attachment MethodTHREADED
Flow Control DeviceDISK
Style DesignatorANGLE
Media for Which DesignedAIR FIRST RESPONSE
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-01-197-3710YB2385G224 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-198-27452385H228 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-222-0216C3459 1X2IPS45T70PSI PL4143 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-222-2716C3459 1.25IN12T35PSI PL4142 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-228-1024C3459 PL 4149 1/4IN 30T50PSI INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-236-5972YB2385E222 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-236-5978C3459 PL4142 65T 100PSI INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-240-83352385H227 INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-296-4820C3459 2 IN INTERCHANGEABLE
Valve,safety Relief
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
C3459 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1384 45T70PSI 3 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
C3459 1384 3/4IN 45T70PSI PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-197-3710INTERCHANGEABLE
VALVE,SAFETY RELIEF
YB2385G224
4820-01-198-2745INTERCHANGEABLE
VALVE,SAFETY RELIEF
2385H228
4820-01-222-0216INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3459 1X2IPS45T70PSI PL4143
4820-01-222-2716INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3459 1.25IN12T35PSI PL4142
4820-01-228-1024INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3459 PL 4149 1/4IN 30T50PSI
4820-01-236-5972INTERCHANGEABLE
VALVE,SAFETY RELIEF
YB2385E222
4820-01-236-5978INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3459 PL4142 65T 100PSI
4820-01-240-8335INTERCHANGEABLE
VALVE,SAFETY RELIEF
2385H227
4820-01-296-4820INTERCHANGEABLE
VALVE,SAFETY RELIEF
C3459 2 IN

Frequently Asked Questions

What is NSN 4820-01-231-2715?

NSN 4820-01-231-2715 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 4820-01-231-2715?

NSN 4820-01-231-2715 has 3 cross-referenced part numbers: C3459 (Leslie Controls, Inc. Dba Leslie Controls Inc), 1384 45T70PSI 3 (Leslie Controls, Inc. Dba Leslie Controls Inc), C3459 1384 3/4IN 45T70PSI (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-231-2715?

There are 9 known substitutes for 4820-01-231-2715: 4820-01-197-3710, 4820-01-198-2745, 4820-01-222-0216 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C3459 1384 3/4IN 45T70PSI?

Key specifications for C3459 1384 3/4IN 45T70PSI: Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS; Material: NICKEL ALLOY STEM. 18 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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