PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16.3-300-MI-3/4Tee,pipe

The American Society of Mechanical Engineers · NSN 4730-00-278-6021 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-278-6021 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-278-6021. Primary manufacturer part number: B16.3-300-MI-3/4.
Features
  • Tee,pipe — FSC 4730
  • Specification/standard Data: 80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Media for Which Designed: STEAM FIRST RESPONSE
  • Operating Pressure: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Material: IRON OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Tee,pipe, cataloged under National Stock Number 4730-00-278-6021, 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 The American Society of Mechanical Engineers. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-278-6021
Primary Part NumberB16.3-300-MI-3/4
Item NameTee,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Specification/standard Data80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Media for Which DesignedSTEAM FIRST RESPONSE
Operating Pressure2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MaterialIRON OVERALL
Leg Length1.438 INCHES NOMINAL ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-057-2971013-404 INTERCHANGEABLE
Elbow,pipe
Dresser Industries Inc Leroi Div
4730-00-231-2409 INTERCHANGEABLE
Cap,pipe
4730-00-231-2414 INTERCHANGEABLE
Cap,pipe
4730-00-246-918580592 INTERCHANGEABLE
Elbow,pipe
Lawson Products, Inc.
4730-00-246-9193 INTERCHANGEABLE
Elbow,pipe
4730-00-277-3227 INTERCHANGEABLE
Tee,pipe
4730-00-278-6022 INTERCHANGEABLE
Tee,pipe
4730-00-773-956710932992-3 INTERCHANGEABLE
Elbow,pipe
U S Army Tank Automotive Command Amsta-Im-Mm
4730-00-838-6856 INTERCHANGEABLE
Elbow,pipe
4730-00-902-090310942570-1 INTERCHANGEABLE
Elbow,pipe
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
B16.3-300-MI-3/4 The American Society of Mechanical Engineers (USA)
ANSIB16.3 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
264E Crane Co Div Valve Div (USA)
FIG1164 Itt Grinnell Corp (USA)
Related Parts
4730-00-057-2971INTERCHANGEABLE
ELBOW,PIPE
013-404
4730-00-231-2409INTERCHANGEABLE
CAP,PIPE
4730-00-231-2414INTERCHANGEABLE
CAP,PIPE
4730-00-246-9185INTERCHANGEABLE
ELBOW,PIPE
80592
4730-00-246-9193INTERCHANGEABLE
ELBOW,PIPE
4730-00-277-3227INTERCHANGEABLE
TEE,PIPE
4730-00-278-6022INTERCHANGEABLE
TEE,PIPE
4730-00-773-9567INTERCHANGEABLE
ELBOW,PIPE
10932992-3
4730-00-838-6856INTERCHANGEABLE
ELBOW,PIPE
4730-00-902-0903INTERCHANGEABLE
ELBOW,PIPE
10942570-1
4730-00-954-7242INTERCHANGEABLE
ELBOW,PIPE
ANSIB16.3
4730-00-973-8788INTERCHANGEABLE
ELBOW,PIPE

Frequently Asked Questions

What is NSN 4730-00-278-6021?

NSN 4730-00-278-6021 is a Tee,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-278-6021?

NSN 4730-00-278-6021 has 4 cross-referenced part numbers: B16.3-300-MI-3/4 (The American Society of Mechanical Engineers), ANSIB16.3 (American National Standards Institute Incorporated Dba American National Standards Institute), 264E (Crane Co Div Valve Div), FIG1164 (Itt Grinnell Corp).

What NSN replaces 4730-00-278-6021?

There are 12 known substitutes for 4730-00-278-6021: 4730-00-057-2971, 4730-00-231-2409, 4730-00-231-2414 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B16.3-300-MI-3/4?

Key specifications for B16.3-300-MI-3/4: Specification/standard Data: 80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Media for Which Designed: STEAM FIRST RESPONSE; Operating Pressure: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-278-6021 still in active supply?

NSN 4730-00-278-6021 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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