PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403-1-2Adapter,straight,pipe to Tube

Kennecott Corp Chase Extrusions Div · NSN 4730-00-618-7617 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-618-7617 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-618-7617. Primary manufacturer part number: 403-1-2.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Overall Length: 1.250 INCHES IN
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Material: COPPER ALLOY OVERALL
  • Nominal Pipe Size Accommodated: 0.500 INCHES SECOND END IN
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Type: UNTHREADED INTERNAL TUBE FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-618-7617, 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 Kennecott Corp Chase Extrusions Div. Government technical data includes 11 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-618-7617
Primary Part Number403-1-2
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerKennecott Corp Chase Extrusions Div
StatusCANCELLED
Nominal Overall Length1.250 INCHES IN
Nominal Thread Size0.500 INCHES SECOND END IN
MaterialCOPPER ALLOY OVERALL
Nominal Pipe Size Accommodated0.500 INCHES SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Connection TypeUNTHREADED INTERNAL TUBE FIRST END
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
Tubing Wall Nominal Thickness for Which Designed0.032 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL PIPE SECOND END
Connection StylePLAIN (TUBE) FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5961-00-078-672740312 INTERCHANGEABLE
Transistor
L3 Technologies, Inc. Div Communication Systems-East
3040-00-099-006340312 INTERCHANGEABLE
Housing,mechanical Drive
L3harris Technologies, Inc Div Space & Airborne Systems
5120-00-287-415141-12MM INTERCHANGEABLE
Socket,socket Wrench
Wright Tool Co
5330-00-412-990040312 INTERCHANGEABLE
Gasket
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
5325-00-598-1178271624PC3 INTERCHANGEABLE
Ring,retaining
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5133-01-107-3742 INTERCHANGEABLE
Drill,twist
6750-01-418-1916 INTERCHANGEABLE
Replenisher,developer Kit,photog
5998-01-464-40954031-2 INTERCHANGEABLE
Circuit Card Assembly
Trig-Tek, Incorporated
Cross-Reference Index
Part NumberManufacturer
403-1-2 Kennecott Corp Chase Extrusions Div (USA)
Related Parts
5961-00-078-6727INTERCHANGEABLE
TRANSISTOR
40312
3040-00-099-0063INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
40312
5120-00-287-4151INTERCHANGEABLE
SOCKET,SOCKET WRENCH
41-12MM
5330-00-412-9900INTERCHANGEABLE
GASKET
40312
5325-00-598-1178INTERCHANGEABLE
RING,RETAINING
271624PC3
5133-01-107-3742INTERCHANGEABLE
DRILL,TWIST
6750-01-418-1916INTERCHANGEABLE
REPLENISHER,DEVELOPER KIT,PHOTOG
5998-01-464-4095INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4031-2

Frequently Asked Questions

What is NSN 4730-00-618-7617?

NSN 4730-00-618-7617 is a Adapter,straight,pipe to Tube, manufactured by Kennecott Corp Chase Extrusions Div, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-618-7617?

NSN 4730-00-618-7617 has 1 cross-referenced part number: 403-1-2 (Kennecott Corp Chase Extrusions Div).

What NSN replaces 4730-00-618-7617?

There are 8 known substitutes for 4730-00-618-7617: 5961-00-078-6727, 3040-00-099-0063, 5120-00-287-4151 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 403-1-2?

Key specifications for 403-1-2: Nominal Overall Length: 1.250 INCHES IN; Nominal Thread Size: 0.500 INCHES SECOND END IN; Material: COPPER ALLOY OVERALL; Nominal Pipe Size Accommodated: 0.500 INCHES SECOND END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-618-7617 still in active supply?

NSN 4730-00-618-7617 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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