PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6Z3661Elbow,pipe to Tube

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 4730-00-277-8273 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-8273 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-8273. Primary manufacturer part number: 6Z3661.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Thread Quantity Per Inch: 24 FIRST END
  • Nominal Pipe Size Accommodated: 0.125 INCHES SECOND END IN
  • Material: COPPER ALLOY 360 OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN
  • Thread Class: 2B FIRST END
  • Thread Series Designator: UNS FIRST END
  • Seat Angle: 42.0 DEGREES FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy 360 Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-277-8273, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 40 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
NSN4730-00-277-8273
Primary Part Number6Z3661
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Thread Quantity Per Inch24 FIRST END
Nominal Pipe Size Accommodated0.125 INCHES SECOND END IN
MaterialCOPPER ALLOY 360 OVERALL
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Thread Class2B FIRST END
Thread Series DesignatorUNS FIRST END
Seat Angle42.0 DEGREES FIRST END
Leg Length0.625 INCHES NOMINAL SECOND END IN
Nominal Thread Size0.438 INCHES FIRST END IN
Flow Angle90.0 DEGREES
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Leg Length0.328 INCHES NOMINAL FIRST END IN
Nominal Thread Size0.125 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE FIRST END
Connection StylePLAIN (PIPE) FIRST END
Connection StylePLAIN (PIPE) SECOND END
Nondefinitive Spec/std Data6 FIGURE
Thread Series DesignatorNPT SECOND END
Material Document and ClassificationQQ-B-626,COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Specification/standard Data81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-059-99717755658P17 INTERCHANGEABLE
Reactor
Lockheed Martin Corporation Div Rms
3110-00-100-8536D21 INTERCHANGEABLE
Bearing,ball,thrust
Schaeffler Group Usa Inc
5120-00-132-5039 INTERCHANGEABLE
Contact Positioner,terminal Crim
6625-00-135-3216 INTERCHANGEABLE
Meter,audio Level
4310-00-141-9425AVP10S49-064PC143 INTERCHANGEABLE
Pin,piston
Naval Ship Systems Command
3110-00-144-8488110381-3 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-151-6689 INTERCHANGEABLE
Elbow,pipe
4710-00-168-203031106 INTERCHANGEABLE
Tube,solenoid Valve
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
9540-00-230-2339 INTERCHANGEABLE
Beam,structural
5136-00-239-2774401060 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
Cross-Reference Index
Part NumberManufacturer
237Y9096 Linde Lift Truck Corp. (USA)
9N18686 Ford Motor Company (USA)
49W1-4X1-8 Imperial (USA)
6Z3661 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
137421 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
49W-4J Anderson Brass Co (USA)
87381S Ford Motor Company (USA)
46944 PRIMARY Hyster-Yale Group, Inc. (USA)
124Y9096 Linde Material Handling North America Corporation (USA)
49W Imperial (USA)
137421 General Motors Llc Dba General Motors Llc (USA)
137421 Euclid Inc (USA)
8027129 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
62F000003 Clark Material Handling Company (USA)
137421 Rolls-Royce Solutions America Inc (USA)
EN18-53 Winco, Inc. (USA)
1A73018B PRIMARY Fwd Seagrave Holdings Lp (USA)
124Y9096 Linde Lift Truck Corp. (USA)
137421 General Motors Corp (USA)
EN18-53 Pierce Co Inc the Sub of Avis Industrial Corp (USA)
Related Parts
5950-00-059-9971INTERCHANGEABLE
REACTOR
7755658P17
3110-00-100-8536INTERCHANGEABLE
BEARING,BALL,THRUST
D21
5120-00-132-5039INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
6625-00-135-3216INTERCHANGEABLE
METER,AUDIO LEVEL
4310-00-141-9425INTERCHANGEABLE
PIN,PISTON
AVP10S49-064PC143
3110-00-144-8488INTERCHANGEABLE
BEARING,BALL,ANNULAR
110381-3
4730-00-151-6689INTERCHANGEABLE
ELBOW,PIPE
4710-00-168-2030INTERCHANGEABLE
TUBE,SOLENOID VALVE
31106
9540-00-230-2339INTERCHANGEABLE
BEAM,STRUCTURAL
5136-00-239-2774INTERCHANGEABLE
DIE,THREAD CUTTING
401060
5940-00-257-1486INTERCHANGEABLE
TERMINAL BOARD
1196116
5310-00-264-0170INTERCHANGEABLE
WASHER,SLOTTED
10474

Frequently Asked Questions

What is NSN 4730-00-277-8273?

NSN 4730-00-277-8273 is a Elbow,pipe to Tube, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-277-8273?

NSN 4730-00-277-8273 has 50 cross-referenced part numbers: 237Y9096 (Linde Lift Truck Corp.), 9N18686 (Ford Motor Company), 49W1-4X1-8 (Imperial), 6Z3661 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 137421 (Chrysler Realty Company Llc Dba Daimler Chrysler) and 45 more.

What NSN replaces 4730-00-277-8273?

There are 12 known substitutes for 4730-00-277-8273: 5950-00-059-9971, 3110-00-100-8536, 5120-00-132-5039 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6Z3661?

Key specifications for 6Z3661: Thread Quantity Per Inch: 24 FIRST END; Nominal Pipe Size Accommodated: 0.125 INCHES SECOND END IN; Material: COPPER ALLOY 360 OVERALL; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-277-8273 still in active supply?

NSN 4730-00-277-8273 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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