PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N37678Diaphragm Case,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-183-2426 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-183-2426 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-183-2426. Primary manufacturer part number: N37678.
Features
  • Diaphragm Case,valve — FSC 4820
  • 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
General Description

The Diaphragm Case,valve, cataloged under National Stock Number 4820-01-183-2426, 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. This item has 4 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.

Catalog Facts
Item NameDiaphragm Case,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersLeslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795)
Technical Specifications
ParameterValue
NSN4820-01-183-2426
Primary Part NumberN37678
Item NameDiaphragm Case,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-01-061-7541N616175358 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-137-8037N42081 INTERCHANGEABLE
Half Ring,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-144-3822N58425 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4810-01-153-151424500N PIECE 24 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-182-2708N56785 INTERCHANGEABLE
Diaphragm Case,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-237-6339N37844 INTERCHANGEABLE
Plate,valve Diaphragm
Leslie Controls, Inc. Dba Leslie Controls Inc
5930-01-360-8108376-78 INTERCHANGEABLE
Switch,thermostatic
Rix Industries
4140-01-470-775337678 INTERCHANGEABLE
Fan,tubeaxial
Tld Wollard Llc
4820-01-587-8318 INTERCHANGEABLE
Valve,diaphragm C
Cross-Reference Index
Part NumberManufacturer
N37678 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
24500N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
37678 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
24500N PIECE 21 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-061-7541INTERCHANGEABLE
SEAT,VALVE
N616175358
4820-01-137-8037INTERCHANGEABLE
HALF RING,VALVE
N42081
4820-01-144-3822INTERCHANGEABLE
DISK,VALVE
N58425
4810-01-153-1514INTERCHANGEABLE
CAP,VALVE
24500N PIECE 24
4820-01-182-2708INTERCHANGEABLE
DIAPHRAGM CASE,VALVE
N56785
4820-01-237-6339INTERCHANGEABLE
PLATE,VALVE DIAPHRAGM
N37844
5930-01-360-8108INTERCHANGEABLE
SWITCH,THERMOSTATIC
376-78
4140-01-470-7753INTERCHANGEABLE
FAN,TUBEAXIAL
37678
4820-01-587-8318INTERCHANGEABLE
VALVE,DIAPHRAGM C

Frequently Asked Questions

What is NSN 4820-01-183-2426?

NSN 4820-01-183-2426 is a Diaphragm Case,valve, 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 4820-01-183-2426?

NSN 4820-01-183-2426 has 4 cross-referenced part numbers: N37678 (Leslie Controls, Inc. Dba Leslie Controls Inc), 24500N (Leslie Controls, Inc. Dba Leslie Controls Inc), 37678 (Leslie Controls, Inc. Dba Leslie Controls Inc), 24500N PIECE 21 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-183-2426?

There are 9 known substitutes for 4820-01-183-2426: 4820-01-061-7541, 4820-01-137-8037, 4820-01-144-3822 and 6 more. Verify interchangeability with system specifications before substitution.

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