PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6-12-8Elbow,pipe to Tube

Formrite Tube Co · NSN 4730-00-857-2843 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-857-2843 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-857-2843. Primary manufacturer part number: 6-12-8.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Leg Length: 1.625 INCHES NOMINAL FIRST END IN
  • Thread Class: 3A FIRST END A
  • Connection Style: FLARED (TUBE) FIRST END
  • Material: STEEL OVERALL
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Thread Series Designator: UN FIRST END
  • Surface Treatment: ZINC INSIDE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-857-2843, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4730-00-857-2843
Primary Part Number6-12-8
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFormrite Tube Co
StatusACTIVE
Leg Length1.625 INCHES NOMINAL FIRST END IN
Thread Class3A FIRST END A
Connection StyleFLARED (TUBE) FIRST END
MaterialSTEEL OVERALL
Nominal Thread Size0.500 INCHES SECOND END IN
Thread Series DesignatorUN FIRST END
Surface TreatmentZINC INSIDE
Surface TreatmentZINC OUTSIDE
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Flow Angle90.0 DEGREES
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Pipe Size Accommodated0.500 INCHES SECOND END IN
Leg Length1.594 INCHES NOMINAL SECOND END IN
Thread Quantity Per Inch12 FIRST END
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
Connection StylePLAIN (PIPE) SECOND END
Nominal Thread Size1.062 INCHES FIRST END IN
Thread Series DesignatorNPTF SECOND END
Seat Angle37.0 DEGREES FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-119-2307141-4 INTERCHANGEABLE
Spring,helical,compression
Cummins Power Generation Inc.
1650-00-147-38846128 INTERCHANGEABLE
Fuse,hydraulic System
Pneudraulics, Inc.
5120-00-181-6816 INTERCHANGEABLE
Socket,socket Wrench
5977-00-296-61285052405AF7 INTERCHANGEABLE
Brush,electrical Contact
General Electric Co Motor Business Group
3020-00-378-121944067HA INTERCHANGEABLE
Gear Cluster
Navistar Intl Corp Truck Br Ohio Plant
2815-00-389-9562 INTERCHANGEABLE
Pan,oil
5955-00-525-5721154029P8 INTERCHANGEABLE
Crystal Unit,quartz
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5330-00-559-238347-615-004-1 INTERCHANGEABLE
Gasket
Bell Textron Inc
4820-00-564-33304824-935025ALT1PC4-5-8T011 INTERCHANGEABLE
Disk Assy
Naval Ship Systems Command
5940-00-993-4628749-4-12 INTERCHANGEABLE
Terminal,stud
Lta/d-Cemco Inc Dba D-Cemco
Cross-Reference Index
Part NumberManufacturer
6-12-8 PRIMARY Formrite Tube Co (USA)
Related Parts
5360-00-119-2307INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
141-4
1650-00-147-3884INTERCHANGEABLE
FUSE,HYDRAULIC SYSTEM
6128
5120-00-181-6816INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5977-00-296-6128INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5052405AF7
3020-00-378-1219INTERCHANGEABLE
GEAR CLUSTER
44067HA
2815-00-389-9562INTERCHANGEABLE
PAN,OIL
5955-00-525-5721INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
154029P8
5330-00-559-2383INTERCHANGEABLE
GASKET
47-615-004-1
4820-00-564-3330INTERCHANGEABLE
DISK ASSY
4824-935025ALT1PC4-5-8T011
5940-00-993-4628INTERCHANGEABLE
TERMINAL,STUD
749-4-12
5305-01-179-1901INTERCHANGEABLE
SCREW,SPECIAL
6-1-28
5120-01-335-8166INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 4730-00-857-2843?

NSN 4730-00-857-2843 is a Elbow,pipe to Tube, manufactured by Formrite Tube Co, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-857-2843?

NSN 4730-00-857-2843 has 1 cross-referenced part number: 6-12-8 (Formrite Tube Co).

What NSN replaces 4730-00-857-2843?

There are 12 known substitutes for 4730-00-857-2843: 5360-00-119-2307, 1650-00-147-3884, 5120-00-181-6816 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6-12-8?

Key specifications for 6-12-8: Leg Length: 1.625 INCHES NOMINAL FIRST END IN; Thread Class: 3A FIRST END A; Connection Style: FLARED (TUBE) FIRST END; Material: STEEL OVERALL. 19 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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