PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

71-8Elbow,tube

Formrite Tube Co · NSN 4730-00-402-9528 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-402-9528 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-402-9528. Primary manufacturer part number: 71-8.
Features
  • Elbow,tube — FSC 4730
  • Leg Length: 1.250 INCHES NOMINAL SECOND END IN
  • Leg Length: 1.344 INCHES NOMINAL FIRST END IN
  • Connection Type: THREADED EXTERNAL TUBE SECOND END
  • Material: STEEL OVERALL
  • Flow Angle: 90.0 DEGREES
  • Nominal Thread Size: 0.750 INCHES SECOND END IN
  • Thread Class: 2B FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,tube, cataloged under National Stock Number 4730-00-402-9528, 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 Formrite Tube Co. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-402-9528
Primary Part Number71-8
Item NameElbow,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFormrite Tube Co
StatusACTIVE
Leg Length1.250 INCHES NOMINAL SECOND END IN
Leg Length1.344 INCHES NOMINAL FIRST END IN
Connection TypeTHREADED EXTERNAL TUBE SECOND END
MaterialSTEEL OVERALL
Flow Angle90.0 DEGREES
Nominal Thread Size0.750 INCHES SECOND END IN
Thread Class2B FIRST END
Thread Series DesignatorUNF SECOND END
Seat Angle37.0 DEGREES SECOND END
Surface TreatmentZINC INSIDE
Thread Series DesignatorUNF FIRST END
Surface TreatmentZINC OUTSIDE
Thread Class2A SECOND END A
Connection TypeTHREADED INTERNAL TUBE FIRST END
Nominal Thread Size0.750 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.500 INCHES SECOND END IN
Connection StyleFLARED (TUBE) SECOND END
Seat Angle37.0 DEGREES FIRST END
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3460-00-076-89769074558-4 INTERCHANGEABLE
Chuck,drill
Us Army Aviation and Missile Command
5133-00-189-9323 INTERCHANGEABLE
Drill,twist
5935-00-201-4783SM-B-425569 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5320-00-404-4784 INTERCHANGEABLE
Rivet,tubular
5999-00-442-646754421 INTERCHANGEABLE
Contact,electrical
L3harris Technologies, Inc. Div Space and Airborne Systems
6110-00-458-007311150399-1 INTERCHANGEABLE
Regulator,voltage
Us Army Aviation and Missile Command
5935-00-502-62326040853 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Rotary and Mission Systems
5905-01-027-3920B4012253-49 INTERCHANGEABLE
Resistor,voltage Sensitive
Department of the Army Hq United States Army Communications Research and Development Command
3040-01-096-113570400-02252-131 INTERCHANGEABLE
Connecting Link,rigid
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
6930-01-180-7333200-33 INTERCHANGEABLE
Element Assembly
Aircraft Instrument Specialists, Inc.
Cross-Reference Index
Part NumberManufacturer
71-8 PRIMARY Formrite Tube Co (USA)
44Z473D6 Morris Material Handling, Inc. (USA)
20033 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
54421 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
3460-00-076-8976INTERCHANGEABLE
CHUCK,DRILL
9074558-4
5133-00-189-9323INTERCHANGEABLE
DRILL,TWIST
5935-00-201-4783INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
SM-B-425569
5320-00-404-4784INTERCHANGEABLE
RIVET,TUBULAR
5999-00-442-6467INTERCHANGEABLE
CONTACT,ELECTRICAL
54421
6110-00-458-0073INTERCHANGEABLE
REGULATOR,VOLTAGE
11150399-1
5935-00-502-6232INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6040853
5905-01-027-3920INTERCHANGEABLE
RESISTOR,VOLTAGE SENSITIVE
B4012253-49
3040-01-096-1135INTERCHANGEABLE
CONNECTING LINK,RIGID
70400-02252-131
6930-01-180-7333INTERCHANGEABLE
ELEMENT ASSEMBLY
200-33
3895-01-216-7356INTERCHANGEABLE
REELING MACHINE,CABLE,MOTOR DRIV
DBC37A
5330-01-256-3074INTERCHANGEABLE
RETAINER,PACKING
20033

Frequently Asked Questions

What is NSN 4730-00-402-9528?

NSN 4730-00-402-9528 is a Elbow,tube, manufactured by Formrite Tube Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-402-9528?

NSN 4730-00-402-9528 has 4 cross-referenced part numbers: 71-8 (Formrite Tube Co), 44Z473D6 (Morris Material Handling, Inc.), 20033 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 54421 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).

What NSN replaces 4730-00-402-9528?

There are 12 known substitutes for 4730-00-402-9528: 3460-00-076-8976, 5133-00-189-9323, 5935-00-201-4783 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 71-8?

Key specifications for 71-8: Leg Length: 1.250 INCHES NOMINAL SECOND END IN; Leg Length: 1.344 INCHES NOMINAL FIRST END IN; Connection Type: THREADED EXTERNAL TUBE SECOND END; Material: STEEL OVERALL. 21 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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