PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

144670-3Adapter,straight,tube to Boss

Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company · NSN 4730-00-798-2312 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-798-2312 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-798-2312. Primary manufacturer part number: 144670-3.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Thread Series Designator: UNF SECOND END
  • Seat Angle: 37.0 DEGREES FIRST END
  • Material: STEEL OVERALL
  • Nominal Overall Length: 2.839 INCHES IN
  • Nominal Thread Size: 0.375 INCHES ALL ENDS IN
  • Connection Style: GASKET SEAL (BOSS) SECOND END
  • Nominal Outside Diameter Tube Accommodated: 0.188 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-798-2312, 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 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-798-2312
Primary Part Number144670-3
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDesigned Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company
StatusACTIVE
Thread Series DesignatorUNF SECOND END
Seat Angle37.0 DEGREES FIRST END
MaterialSTEEL OVERALL
Nominal Overall Length2.839 INCHES IN
Nominal Thread Size0.375 INCHES ALL ENDS IN
Connection StyleGASKET SEAL (BOSS) SECOND END
Nominal Outside Diameter Tube Accommodated0.188 INCHES FIRST END IN
Thread Class3B SECOND END
Furnished Items and Quantity6 PREFORMED PACKING AND 1 LOCK WASHER
Connection TypeTHREADED INTERNAL BOSS SECOND END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Class3A FIRST END A
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
Connection StyleFLARED (TUBE) FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1650-00-084-1210141680-6 INTERCHANGEABLE
Swivel Assy,pressure
Huck International, Inc
5365-00-287-0090 INTERCHANGEABLE
Plug,machine Thread
1650-00-445-13457M63D4 INTERCHANGEABLE
Swivel Joint,hydraulic,aircraft
The Boeing Company Div Defense
3433-01-086-89627M63-TF INTERCHANGEABLE
Electrode Assembly
Oerlikon Metco Us Inc
Cross-Reference Index
Part NumberManufacturer
7M63D3 The Boeing Company Div Defense (USA)
144670-3 PRIMARY Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
7M63 Skyland Precision Mfg (USA)
Related Parts
1650-00-084-1210INTERCHANGEABLE
SWIVEL ASSY,PRESSURE
141680-6
5365-00-287-0090INTERCHANGEABLE
PLUG,MACHINE THREAD
1650-00-445-1345INTERCHANGEABLE
SWIVEL JOINT,HYDRAULIC,AIRCRAFT
7M63D4
3433-01-086-8962INTERCHANGEABLE
ELECTRODE ASSEMBLY
7M63-TF

Frequently Asked Questions

What is NSN 4730-00-798-2312?

NSN 4730-00-798-2312 is a Adapter,straight,tube to Boss, manufactured by Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-798-2312?

NSN 4730-00-798-2312 has 3 cross-referenced part numbers: 7M63D3 (The Boeing Company Div Defense), 144670-3 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), 7M63 (Skyland Precision Mfg).

What NSN replaces 4730-00-798-2312?

There are 4 known substitutes for 4730-00-798-2312: 1650-00-084-1210, 5365-00-287-0090, 1650-00-445-1345 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 144670-3?

Key specifications for 144670-3: Thread Series Designator: UNF SECOND END; Seat Angle: 37.0 DEGREES FIRST END; Material: STEEL OVERALL; Nominal Overall Length: 2.839 INCHES IN. 15 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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