PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NB31540272Diaphragm,valve,flat

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-480-2074 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-480-2074 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-480-2074. Primary manufacturer part number: NB31540272.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Style Designator: FLAT
  • Center Hole Diameter: 0.500 INCHES NOMINAL IN
  • Material: RUBBER FABRIC REINFORCED
  • Outside Diameter: 5.750 INCHES NOMINAL IN
  • Material Thickness: 0.125 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Fabric Reinforced construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-480-2074, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-480-2074
Primary Part NumberNB31540272
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Style DesignatorFLAT
Center Hole Diameter0.500 INCHES NOMINAL IN
MaterialRUBBER FABRIC REINFORCED
Outside Diameter5.750 INCHES NOMINAL IN
Material Thickness0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-175-2420984690-1 INTERCHANGEABLE
Transformer,pulse
Raytheon Company Dba Raytheon
3120-00-354-5365C9-112-01-0004 INTERCHANGEABLE
Bearing,sleeve
Air Products & Chemicals, Inc
4310-00-424-52882W13891 INTERCHANGEABLE
Thrower,crankshaft
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5940-00-825-308011-307-2-01 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
2915-01-182-405426147 INTERCHANGEABLE
Fitting,inlet Scree
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
3030-01-241-554515395 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
6530-01-467-4829 INTERCHANGEABLE
Adapter,sterrad
Cross-Reference Index
Part NumberManufacturer
15402 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N423PC9 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
NB31540272 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N423SH2PC9 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5950-00-175-2420INTERCHANGEABLE
TRANSFORMER,PULSE
984690-1
3120-00-354-5365INTERCHANGEABLE
BEARING,SLEEVE
C9-112-01-0004
4310-00-424-5288INTERCHANGEABLE
THROWER,CRANKSHAFT
2W13891
5940-00-825-3080INTERCHANGEABLE
TERMINAL,STUD
11-307-2-01
2915-01-182-4054INTERCHANGEABLE
FITTING,INLET SCREE
26147
3030-01-241-5545INTERCHANGEABLE
BELT,V
15395
6530-01-467-4829INTERCHANGEABLE
ADAPTER,STERRAD

Frequently Asked Questions

What is NSN 4820-00-480-2074?

NSN 4820-00-480-2074 is a Diaphragm,valve,flat, 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 4820-00-480-2074?

NSN 4820-00-480-2074 has 4 cross-referenced part numbers: 15402 (Leslie Controls, Inc. Dba Leslie Controls Inc), N423PC9 (Leslie Controls, Inc. Dba Leslie Controls Inc), NB31540272 (Leslie Controls, Inc. Dba Leslie Controls Inc), N423SH2PC9 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-00-480-2074?

There are 7 known substitutes for 4820-00-480-2074: 5950-00-175-2420, 3120-00-354-5365, 4310-00-424-5288 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NB31540272?

Key specifications for NB31540272: Style Designator: FLAT; Center Hole Diameter: 0.500 INCHES NOMINAL IN; Material: RUBBER FABRIC REINFORCED; Outside Diameter: 5.750 INCHES NOMINAL IN. 5 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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