PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3394Adapter,straight,pipe to Tube

Hdt Expeditionary Systems Inc · NSN 4730-00-104-6264 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-104-6264 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-104-6264. Primary manufacturer part number: 3394.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Seat Nominal Radius: 0.062 INCHES FIRST END IN
  • Thread Series Designator: UNS FIRST END
  • Thread Series Designator: NPT SECOND END
  • Nominal Thread Size: 0.438 INCHES FIRST END IN
  • Material: COPPER ALLOY OVERALL
  • Nominal Overall Length: 1.375 INCHES IN
  • Nominal Thread Size: 0.125 INCHES SECOND 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 4730-00-104-6264, 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 Hdt Expeditionary Systems Inc. Government technical data includes 12 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-104-6264
Primary Part Number3394
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Seat Nominal Radius0.062 INCHES FIRST END IN
Thread Series DesignatorUNS FIRST END
Thread Series DesignatorNPT SECOND END
Nominal Thread Size0.438 INCHES FIRST END IN
MaterialCOPPER ALLOY OVERALL
Nominal Overall Length1.375 INCHES IN
Nominal Thread Size0.125 INCHES SECOND END IN
Connection StyleDOUBLE COMPRESSION (TUBE) FIRST END
Thread Class2B FIRST END
Connection StylePLAIN (PIPE) SECOND END
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Thread Quantity Per Inch24 FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5325-00-478-2555 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
5975-00-502-98063394 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
3460-00-967-00063394-2 INTERCHANGEABLE
Collet,propeller
Dynamic Air Engineering, Inc.
5930-01-014-6228 INTERCHANGEABLE
Switch,rotary
5330-01-026-0659833394 INTERCHANGEABLE
Gasket
Vulcan-Hart Corp
5340-01-228-6227242-0510-07-0 INTERCHANGEABLE
Clamp,loop
Hale Products, Inc.
5955-01-371-176687001F1154 INTERCHANGEABLE
Oscillator,crystal Controlled
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
Cross-Reference Index
Part NumberManufacturer
3394 PRIMARY Hdt Expeditionary Systems Inc (USA)
Related Parts
5325-00-478-2555INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
5975-00-502-9806INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
3394
3460-00-967-0006INTERCHANGEABLE
COLLET,PROPELLER
3394-2
5930-01-014-6228INTERCHANGEABLE
SWITCH,ROTARY
5330-01-026-0659INTERCHANGEABLE
GASKET
833394
5340-01-228-6227INTERCHANGEABLE
CLAMP,LOOP
242-0510-07-0
5955-01-371-1766INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
87001F1154

Frequently Asked Questions

What is NSN 4730-00-104-6264?

NSN 4730-00-104-6264 is a Adapter,straight,pipe to Tube, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-104-6264?

NSN 4730-00-104-6264 has 1 cross-referenced part number: 3394 (Hdt Expeditionary Systems Inc).

What NSN replaces 4730-00-104-6264?

There are 7 known substitutes for 4730-00-104-6264: 5325-00-478-2555, 5975-00-502-9806, 3460-00-967-0006 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3394?

Key specifications for 3394: Seat Nominal Radius: 0.062 INCHES FIRST END IN; Thread Series Designator: UNS FIRST END; Thread Series Designator: NPT SECOND END; Nominal Thread Size: 0.438 INCHES FIRST END IN. 12 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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