PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N522REVBN531REVBIM48Valve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-471-6210 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-471-6210 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-471-6210. Primary manufacturer part number: N522REVBN531REVBIM48.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 3 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-471-6210, 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 2 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-471-6210
Primary Part NumberN522REVBN531REVBIM48
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5360-00-291-1203A1254 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5935-00-636-62432C7 INTERCHANGEABLE
Socket,plug-in Electronic Compon
L3harris Interstate Electronics Corporation
4820-01-109-6152N-522XN-654 60T100PSI INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-150-2246YB2311A225 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-151-8969N-522 X N-530 40T70PSI INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-237-283030 90T150PSI N-522 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-397-5366NB22248727 INTERCHANGEABLE
Retainer,disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-398-1416NB23028823 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-407-2964YB2318A221 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-424-2682YB2311A223 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
N522REVBN531REVBIM48 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N-522 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
YB2311A225 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5360-00-291-1203INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A1254
5935-00-636-6243INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
2C7
4820-01-109-6152INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
N-522XN-654 60T100PSI
4820-01-150-2246INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2311A225
4820-01-151-8969INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
N-522 X N-530 40T70PSI
4820-01-237-2830INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
30 90T150PSI N-522
4820-01-397-5366INTERCHANGEABLE
RETAINER,DISK,VALVE
NB22248727
4820-01-398-1416INTERCHANGEABLE
CAP,VALVE
NB23028823
4820-01-407-2964INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2318A221
4820-01-424-2682INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2311A223

Frequently Asked Questions

What is NSN 4820-01-471-6210?

NSN 4820-01-471-6210 is a Valve,regulating,fluid Pressure, 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 4820-01-471-6210?

NSN 4820-01-471-6210 has 3 cross-referenced part numbers: N522REVBN531REVBIM48 (Leslie Controls, Inc. Dba Leslie Controls Inc), N-522 (Leslie Controls, Inc. Dba Leslie Controls Inc), YB2311A225 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-471-6210?

There are 10 known substitutes for 4820-01-471-6210: 5360-00-291-1203, 5935-00-636-6243, 4820-01-109-6152 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N522REVBN531REVBIM48?

Key specifications for N522REVBN531REVBIM48: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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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