PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8003-8Diaphragm Assembly

Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives · NSN 6685-00-784-4180 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-784-4180 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-784-4180. Primary manufacturer part number: 8003-8.
Features
  • Diaphragm Assembly — FSC 6685
  • 9 verified cross-references
  • Primary manufacturer: Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diaphragm Assembly, cataloged under National Stock Number 6685-00-784-4180, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-784-4180
Primary Part Number8003-8
Item NameDiaphragm Assembly
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerSiemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5306-00-018-6272186272 INTERCHANGEABLE
Bolt,machine
Rolls-Royce Solutions America Inc
3455-00-167-1849140510 INTERCHANGEABLE
Cutter,milling,end
Jarvis Cutting Tools Inc
5330-00-361-276380038 INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
4310-00-810-2804P8650A121 INTERCHANGEABLE
Diaphragm Assembly,
Elliott Company Div Jeannette
5945-00-900-4860 INTERCHANGEABLE
Relay,electromagnetic
5961-01-156-499080038 INTERCHANGEABLE
Transistor
U S Dept of Transportation Federal Aviation Administration
4720-01-194-161680-038 INTERCHANGEABLE
Hose,nonmetallic
Burke Industries Purosil Div
3120-01-207-7755 INTERCHANGEABLE
Bearing,washer,thrust
6810-01-324-794980-038 INTERCHANGEABLE
Chloramine-T
Major Lab Mfg
8010-01-329-6150 INTERCHANGEABLE
Prussian Blue Paste,bearing Surf
Cross-Reference Index
Part NumberManufacturer
8003-8 Siemens Moore Process Automation (GBR)
10438PC23 General Regulator Corp. Dba Accudriv (USA)
8003-8SPCL Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
8106-72PC17 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
8003-8 PRIMARY Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
8106-6PC14 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
8003-8CP Naval Inventory Control Point Mechanicsburg (USA)
30275PC14 General Regulator Corp. Dba Accudriv (USA)
P8650A121 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
Related Parts
5306-00-018-6272INTERCHANGEABLE
BOLT,MACHINE
186272
3455-00-167-1849INTERCHANGEABLE
CUTTER,MILLING,END
140510
5330-00-361-2763INTERCHANGEABLE
GASKET
80038
4310-00-810-2804INTERCHANGEABLE
DIAPHRAGM ASSEMBLY,
P8650A121
5945-00-900-4860INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5961-01-156-4990INTERCHANGEABLE
TRANSISTOR
80038
4720-01-194-1616INTERCHANGEABLE
HOSE,NONMETALLIC
80-038
3120-01-207-7755INTERCHANGEABLE
BEARING,WASHER,THRUST
6810-01-324-7949INTERCHANGEABLE
CHLORAMINE-T
80-038
8010-01-329-6150INTERCHANGEABLE
PRUSSIAN BLUE PASTE,BEARING SURF
5360-01-430-1801INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
8003-8

Frequently Asked Questions

What is NSN 6685-00-784-4180?

NSN 6685-00-784-4180 is a Diaphragm Assembly, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-784-4180?

NSN 6685-00-784-4180 has 9 cross-referenced part numbers: 8003-8 (Siemens Moore Process Automation), 10438PC23 (General Regulator Corp. Dba Accudriv), 8003-8SPCL (Treadwell Corporation (delaware) Dba Treadwell Corp), 8106-72PC17 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 8003-8 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives) and 4 more.

What NSN replaces 6685-00-784-4180?

There are 11 known substitutes for 6685-00-784-4180: 5306-00-018-6272, 3455-00-167-1849, 5330-00-361-2763 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8003-8?

Key specifications for 8003-8: End Item Identification: STAND ASSEMBLY,TEST AFTERBURNER FUEL PUMP,P/N PWA15505. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-784-4180 still in active supply?

NSN 6685-00-784-4180 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.
PartsTable Design LLC · partstable.com