PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

507385-1Diaphragm,valve,flat

Smith Meter Inc Parts Opn · NSN 4820-00-736-7784 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-736-7784 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-736-7784. Primary manufacturer part number: 507385-1.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Hole Diameter: 0.240 INCHES NOMINAL IN
  • Material Thickness: 0.024 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
  • Bolt Hole Quantity: 8
  • Bolt Circle Diameter: 2.375 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Outside Diameter: 2.750 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-736-7784, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Smith Meter Inc Parts Opn. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-736-7784
Primary Part Number507385-1
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSmith Meter Inc Parts Opn
StatusACTIVE
Hole Diameter0.240 INCHES NOMINAL IN
Material Thickness0.024 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Bolt Hole Quantity8
Bolt Circle Diameter2.375 INCHES NOMINAL IN
Style DesignatorFLAT
Outside Diameter2.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-00-773-3685507385-1 INTERCHANGEABLE
Diaphragm,valve,flat
A. O. Smith Corporation Dba a O Smith Corp
5950-01-011-1879507385-1 INTERCHANGEABLE
Coil,radio Frequency
L3harris Technologies, Inc. Dba Harris Corporation
5910-01-371-0166 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Cross-Reference Index
Part NumberManufacturer
HRW507385-1 Beta Fueling Systems, Llc (USA)
HRW507385-1 General Steel Tank Co (USA)
507385-1 PRIMARY Smith Meter Inc Parts Opn (USA)
HRW507385-1 General Steel Tank Co (USA)
Related Parts
4820-00-773-3685INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
507385-1
5950-01-011-1879INTERCHANGEABLE
COIL,RADIO FREQUENCY
507385-1
5910-01-371-0166INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC

Frequently Asked Questions

What is NSN 4820-00-736-7784?

NSN 4820-00-736-7784 is a Diaphragm,valve,flat, manufactured by Smith Meter Inc Parts Opn, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-736-7784?

NSN 4820-00-736-7784 has 4 cross-referenced part numbers: HRW507385-1 (Beta Fueling Systems, Llc), HRW507385-1 (General Steel Tank Co), 507385-1 (Smith Meter Inc Parts Opn), HRW507385-1 (General Steel Tank Co).

What NSN replaces 4820-00-736-7784?

There are 3 known substitutes for 4820-00-736-7784: 4820-00-773-3685, 5950-01-011-1879, 5910-01-371-0166. Verify interchangeability with system specifications before substitution.

What are the specifications of 507385-1?

Key specifications for 507385-1: Hole Diameter: 0.240 INCHES NOMINAL IN; Material Thickness: 0.024 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC; Bolt Hole Quantity: 8. 7 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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