PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

671J204IT8Diaphragm,manway

Westinghouse Electric Corp Power Generation-Turbine Div · NSN 4470-00-995-0694 · FSC 4470 · No Item Name Available
Verified by PartsTable
NSN 4470-00-995-0694 — this item is cataloged by the U.S. Government under National Stock Number 4470-00-995-0694. Primary manufacturer part number: 671J204IT8.
Features
  • Diaphragm,manway — FSC 4470
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CO NTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 28 verified cross-references
  • Primary manufacturer: Westinghouse Electric Corp Power Generation-Turbine Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diaphragm,manway, cataloged under National Stock Number 4470-00-995-0694, is classified within Federal Supply Class 4470 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Westinghouse Electric Corp Power Generation-Turbine Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4470-00-995-0694
Primary Part Number671J204IT8
Item NameDiaphragm,manway
FSC / FSG4470 / 44 — No Item Name Available
ManufacturerWestinghouse Electric Corp Power Generation-Turbine Div
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CO NTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4470-00-297-8568 INTERCHANGEABLE
Diaphragm,manway Seal
4470-00-855-0624 INTERCHANGEABLE
Diaphragm
Cross-Reference Index
Part NumberManufacturer
671J204IT8 Westinghouse Electric Corp Power Generation-Turbine Div (USA)
E232-681PC685-5 Combustion Engineering Inc Chattanooga Works (USA)
910D979PC4 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
24980FMK-107 Babcock & Wilcox Companies, the Div Sales & Service (USA)
NF42242PC83 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
NF42242PC83 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
368B491PC1 Westinghouse Electric Corp Power Generation-Turbine Div (USA)
910D979PC4 Fluor Marine Propulsion, Llc (USA)
NF-4224PC1006 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
28559FPC83 Babcock & Wilcox Companies, the Div Sales & Service (USA)
NF-42637IT587 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
820-4384426PC4 Naval Ship Systems Command (USA)
910D979PC4 Babcock & Wilcox Companies, the Div Sales & Service (USA)
E231-924PC924-03 Combustion Engineering Inc Chattanooga Works (USA)
F-231-752PC752-2 Combustion Engineering Inc Chattanooga Works (USA)
24980FPC107 Babcock & Wilcox Companies, the Div Sales & Service (USA)
18531FPC70 Babcock & Wilcox Co (USA)
HE85009PC108 A. O. Smith Corporation Dba a O Smith Corp (USA)
906J190PC8 Westinghouse Electric Corp Power Generation-Turbine Div (USA)
66-2-5491E3PC7-3 Struthers Wells Corp (USA)
Related Parts
4470-00-297-8568INTERCHANGEABLE
DIAPHRAGM,MANWAY SEAL
4470-00-855-0624INTERCHANGEABLE
DIAPHRAGM

Frequently Asked Questions

What is NSN 4470-00-995-0694?

NSN 4470-00-995-0694 is a Diaphragm,manway, manufactured by Westinghouse Electric Corp Power Generation-Turbine Div, classified under FSC 4470 (No Item Name Available). Status: active.

What are the part numbers for NSN 4470-00-995-0694?

NSN 4470-00-995-0694 has 28 cross-referenced part numbers: 671J204IT8 (Westinghouse Electric Corp Power Generation-Turbine Div), E232-681PC685-5 (Combustion Engineering Inc Chattanooga Works), 910D979PC4 (Amec Foster Wheeler North America Corp. Dba Foster Wheeler), 24980FMK-107 (Babcock & Wilcox Companies, the Div Sales & Service), NF42242PC83 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco) and 23 more.

What NSN replaces 4470-00-995-0694?

There are 2 known substitutes for 4470-00-995-0694: 4470-00-297-8568, 4470-00-855-0624. Verify interchangeability with system specifications before substitution.

What are the specifications of 671J204IT8?

Key specifications for 671J204IT8: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CO NTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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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