PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39435-1SDiaphragm Assembly

Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology · NSN 4320-00-235-3904 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-235-3904 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-235-3904. Primary manufacturer part number: 39435-1S.
Features
  • Diaphragm Assembly — FSC 4320
  • General Characteristics Item Description: CONSISTS OF DIAPHRAGM 1;SPRING 1
  • 3 verified cross-references
  • Primary manufacturer: Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Diaphragm Assembly, cataloged under National Stock Number 4320-00-235-3904, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN4320-00-235-3904
Primary Part Number39435-1S
Item NameDiaphragm Assembly
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerSelas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF DIAPHRAGM 1;SPRING 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4320-00-215-797239435-1S INTERCHANGEABLE
Diaphragm Assembly
R. D. Miners, Inc Dba Ray Burner Co
5340-01-281-2393M2161-1 INTERCHANGEABLE
Bracket,angle
Federal Equipment Co
5330-01-316-131339435-1S INTERCHANGEABLE
Seal,plain
Way Wolff Associates Inc
Cross-Reference Index
Part NumberManufacturer
39435-1S PRIMARY Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology (USA)
M216-11 Way Wolff Associates Inc (USA)
M216-11 R. D. Miners, Inc Dba Ray Burner Co (USA)
Related Parts
4320-00-215-7972INTERCHANGEABLE
DIAPHRAGM ASSEMBLY
39435-1S
5340-01-281-2393INTERCHANGEABLE
BRACKET,ANGLE
M2161-1
5330-01-316-1313INTERCHANGEABLE
SEAL,PLAIN
39435-1S

Frequently Asked Questions

What is NSN 4320-00-235-3904?

NSN 4320-00-235-3904 is a Diaphragm Assembly, manufactured by Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-235-3904?

NSN 4320-00-235-3904 has 3 cross-referenced part numbers: 39435-1S (Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology), M216-11 (Way Wolff Associates Inc), M216-11 (R. D. Miners, Inc Dba Ray Burner Co).

What NSN replaces 4320-00-235-3904?

There are 3 known substitutes for 4320-00-235-3904: 4320-00-215-7972, 5340-01-281-2393, 5330-01-316-1313. Verify interchangeability with system specifications before substitution.

What are the specifications of 39435-1S?

Key specifications for 39435-1S: General Characteristics Item Description: CONSISTS OF DIAPHRAGM 1;SPRING 1. 1 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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