PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

169983Elbow,pipe to Tube

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 4730-00-277-8837 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-8837 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-8837. Primary manufacturer part number: 169983.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Nominal Thread Size: 0.125 INCHES SECOND END IN
  • Leg Length: 0.656 INCHES NOMINAL FIRST END IN
  • Nominal Thread Size: 0.438 INCHES FIRST END IN
  • Flow Angle: 90.0 DEGREES
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Thread Series Designator: NPTF SECOND END
  • Leg Length: 0.688 INCHES NOMINAL SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-277-8837, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-277-8837
Primary Part Number169983
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Nominal Thread Size0.125 INCHES SECOND END IN
Leg Length0.656 INCHES NOMINAL FIRST END IN
Nominal Thread Size0.438 INCHES FIRST END IN
Flow Angle90.0 DEGREES
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Series DesignatorNPTF SECOND END
Leg Length0.688 INCHES NOMINAL SECOND END IN
Thread Class2B FIRST END
Connection StylePLAIN (PIPE) SECOND END
Thread Series DesignatorUNS FIRST END
Thread Quantity Per Inch24 FIRST END
Connection StyleDOUBLE COMPRESSION (TUBE) FIRST END
MaterialCOPPER ALLOY OVERALL
Connection TypeTHREADED INTERNAL TUBE FIRST END
Seat Nominal Radius0.062 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Nominal Pipe Size Accommodated0.125 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-011-4919CNDX1 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Brunswick Corporation Div Brunswick Corp Defense Div
4730-00-288-9930157221 INTERCHANGEABLE
Adapter,straight,pipe to Tube
U S Army Tank Automotive Command Amsta-Im-Mm
4730-00-288-9965106-20006 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Danfoss Power Solutions II, Llc
9905-01-202-0984 INTERCHANGEABLE
Plate,instruction
Cross-Reference Index
Part NumberManufacturer
169983 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
CNDX1 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
4730-00-011-4919INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
CNDX1
4730-00-288-9930INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
157221
4730-00-288-9965INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
106-20006
9905-01-202-0984INTERCHANGEABLE
PLATE,INSTRUCTION

Frequently Asked Questions

What is NSN 4730-00-277-8837?

NSN 4730-00-277-8837 is a Elbow,pipe to Tube, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-277-8837?

NSN 4730-00-277-8837 has 2 cross-referenced part numbers: 169983 (U S Army Tank Automotive Command Amsta-Im-Mm), CNDX1 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 4730-00-277-8837?

There are 4 known substitutes for 4730-00-277-8837: 4730-00-011-4919, 4730-00-288-9930, 4730-00-288-9965 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 169983?

Key specifications for 169983: Nominal Thread Size: 0.125 INCHES SECOND END IN; Leg Length: 0.656 INCHES NOMINAL FIRST END IN; Nominal Thread Size: 0.438 INCHES FIRST END IN; Flow Angle: 90.0 DEGREES. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-277-8837 still in active supply?

NSN 4730-00-277-8837 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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