PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N56647Diaphragm,valve,flat

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-949-8240 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-949-8240 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-949-8240. Primary manufacturer part number: N56647.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Outside Diameter: 2.515 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Material: NICKEL ALLOY
  • Material Thickness: 0.032 INCHES NOMINAL IN
  • 50 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 Nickel Alloy construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-949-8240, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-949-8240
Primary Part NumberN56647
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusCANCELLED
Outside Diameter2.515 INCHES NOMINAL IN
Style DesignatorFLAT
MaterialNICKEL ALLOY
Material Thickness0.032 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-036-1554N14090 INTERCHANGEABLE
Diaphragm,valve,flat
Leslie Controls, Inc. Dba Leslie Controls Inc
1650-00-136-81241042-5 INTERCHANGEABLE
Magnet Assembly,damper
Hydro-Aire Aerospace Corp
5935-00-258-9157M7406429PT1 INTERCHANGEABLE
Adapter,connector
General Electric Company
4310-00-288-1229N03355 INTERCHANGEABLE
Ring,piston
Leslie Controls, Inc. Dba Leslie Controls Inc
5330-00-292-049210206 INTERCHANGEABLE
Seal,plain Encased
Garwood/feller Inc Garwood Winch Div
5935-00-329-4616 INTERCHANGEABLE
Connector,adapter
4320-00-367-1453CS4320-0203 INTERCHANGEABLE
Cylinder Sleeve
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
4820-00-446-335010598 PC 29 AND 30 INTERCHANGEABLE
Guide,valve Stem
Classic Mfg
5977-00-726-943110425 INTERCHANGEABLE
Brush Set,electrical Contact
Miraj Corp
4320-00-919-9670942663PA INTERCHANGEABLE
Ring,wearing
Curtiss-Wright Electro-Mechanical Corporation Div Epd
Cross-Reference Index
Part NumberManufacturer
PNS214-3PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS284-1PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
9011NPC16 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
8686NREVAPC10425 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5567NPC15 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5634FALT1PC10425 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS135-1PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS135-11PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5577NPC16 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5570NPC15 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS283-3PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS120-10PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
8974NPC16 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
10425 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5576NPC16 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
8678NREVAPC7 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
5569NPC15 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS200-4PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
PNS120-5PC24 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
S4700-3000783 Naval Sea Systems Command (USA)
Related Parts
4820-00-036-1554INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
N14090
1650-00-136-8124INTERCHANGEABLE
MAGNET ASSEMBLY,DAMPER
1042-5
5935-00-258-9157INTERCHANGEABLE
ADAPTER,CONNECTOR
M7406429PT1
4310-00-288-1229INTERCHANGEABLE
RING,PISTON
N03355
5330-00-292-0492INTERCHANGEABLE
SEAL,PLAIN ENCASED
10206
5935-00-329-4616INTERCHANGEABLE
CONNECTOR,ADAPTER
4320-00-367-1453INTERCHANGEABLE
CYLINDER SLEEVE
CS4320-0203
4820-00-446-3350INTERCHANGEABLE
GUIDE,VALVE STEM
10598 PC 29 AND 30
5977-00-726-9431INTERCHANGEABLE
BRUSH SET,ELECTRICAL CONTACT
10425
4320-00-919-9670INTERCHANGEABLE
RING,WEARING
942663PA
5360-01-069-2659INTERCHANGEABLE
SPRING
5977-01-087-8307INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT

Frequently Asked Questions

What is NSN 4820-00-949-8240?

NSN 4820-00-949-8240 is a Diaphragm,valve,flat, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-949-8240?

NSN 4820-00-949-8240 has 50 cross-referenced part numbers: PNS214-3PC24 (Leslie Controls, Inc. Dba Leslie Controls Inc), PNS284-1PC24 (Leslie Controls, Inc. Dba Leslie Controls Inc), 9011NPC16 (Leslie Controls, Inc. Dba Leslie Controls Inc), 8686NREVAPC10425 (Leslie Controls, Inc. Dba Leslie Controls Inc), 5567NPC15 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 45 more.

What NSN replaces 4820-00-949-8240?

There are 12 known substitutes for 4820-00-949-8240: 4820-00-036-1554, 1650-00-136-8124, 5935-00-258-9157 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N56647?

Key specifications for N56647: Outside Diameter: 2.515 INCHES NOMINAL IN; Style Designator: FLAT; Special Features: FOR LESLIE CONTROLS PRESSURE REGULATING VALVE SZ 2.000 IN. IN; Material: NICKEL ALLOY. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-949-8240 still in active supply?

NSN 4820-00-949-8240 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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