PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16-5-1953TABLE21Flange,pipe

Armstadt V Ltd Harrison Alloys Div · NSN 4730-00-235-4078 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-235-4078 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-235-4078. Primary manufacturer part number: B16-5-1953TABLE21.
Features
  • Flange,pipe — FSC 4730
  • Flange Section Style: RAISED FACE, RAISED NECK
  • Maximum Operating Temp and Media for Which Designed: 500.0 FAHRENHEIT STEAM DEGF
  • Material: STEEL
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Surface Treatment: PAINT
  • Specification/standard Data: 80204-ASA B16.5,TABLES 13 AND 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Operating Pressure and Type: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-00-235-4078, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Armstadt V Ltd Harrison Alloys Div. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-235-4078
Primary Part NumberB16-5-1953TABLE21
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerArmstadt V Ltd Harrison Alloys Div
StatusCANCELLED
Flange Section StyleRAISED FACE, RAISED NECK
Maximum Operating Temp and Media for Which Designed500.0 FAHRENHEIT STEAM DEGF
MaterialSTEEL
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
Surface TreatmentPAINT
Specification/standard Data80204-ASA B16.5,TABLES 13 AND 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Operating Pressure and Type150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Thickness0.656 INCHES NOMINAL IN
Flange Diameter4.625 INCHES NOMINAL IN
Bolt Circle Diameter3.500 INCHES NOMINAL IN
Neck Height0.172 INCHES NOMINAL IN
Raised Face Diameter2.531 INCHES NOMINAL IN
Furnished ItemsBOLT
Bolt Hole Diameter0.625 INCHES NOMINAL IN
Nominal Pipe Size for Which Designed1.250 INCHES IN
Face Seating Surface ConditionSERRATED
Bolt Hole Quantity4
Raised Face Height0.047 INCHES NOMINAL IN
Features ProvidedCOUNTERBORED BOLT HOLES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
4730-00-235-4075 INTERCHANGEABLE
Flange,pipe
4730-00-235-4077 INTERCHANGEABLE
Flange,pipe
4730-00-235-4081 INTERCHANGEABLE
Flange,pipe
4730-00-235-4082 INTERCHANGEABLE
Flange,pipe
4730-00-257-0124 INTERCHANGEABLE
Flange,pipe
4730-01-022-5679 INTERCHANGEABLE
Flange,pipe
4730-01-181-3620 INTERCHANGEABLE
Flange,pipe
4730-01-186-8701 INTERCHANGEABLE
Flange,pipe
4730-01-267-206120-2 1/2 INTERCHANGEABLE
Flange,pipe
Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
Cross-Reference Index
Part NumberManufacturer
B16-5-1953TABLE21 Armstadt V Ltd Harrison Alloys Div (USA)
B16-5-1953TABLE21 Mindeco Corp (USA)
B16-5-1953TABLE21 Allied Plumbing Sales Co Inc (USA)
M18180/2-04A04 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-18180/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B16-5-1953TABLE21 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
4730-00-235-4075INTERCHANGEABLE
FLANGE,PIPE
4730-00-235-4077INTERCHANGEABLE
FLANGE,PIPE
4730-00-235-4081INTERCHANGEABLE
FLANGE,PIPE
4730-00-235-4082INTERCHANGEABLE
FLANGE,PIPE
4730-00-257-0124INTERCHANGEABLE
FLANGE,PIPE
4730-01-022-5679INTERCHANGEABLE
FLANGE,PIPE
4730-01-181-3620INTERCHANGEABLE
FLANGE,PIPE
4730-01-186-8701INTERCHANGEABLE
FLANGE,PIPE
4730-01-267-2061INTERCHANGEABLE
FLANGE,PIPE
20-2 1/2

Frequently Asked Questions

What is NSN 4730-00-235-4078?

NSN 4730-00-235-4078 is a Flange,pipe, manufactured by Armstadt V Ltd Harrison Alloys Div, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-235-4078?

NSN 4730-00-235-4078 has 6 cross-referenced part numbers: B16-5-1953TABLE21 (Armstadt V Ltd Harrison Alloys Div), B16-5-1953TABLE21 (Mindeco Corp), B16-5-1953TABLE21 (Allied Plumbing Sales Co Inc), M18180/2-04A04 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-18180/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 4730-00-235-4078?

There are 9 known substitutes for 4730-00-235-4078: 4730-00-235-4075, 4730-00-235-4077, 4730-00-235-4081 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B16-5-1953TABLE21?

Key specifications for B16-5-1953TABLE21: Flange Section Style: RAISED FACE, RAISED NECK; Maximum Operating Temp and Media for Which Designed: 500.0 FAHRENHEIT STEAM DEGF; Material: STEEL; Style Designator: ROUND, ONE BOLT HOLE CIRCLE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-235-4078 still in active supply?

NSN 4730-00-235-4078 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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