PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3550Adapter,straight,pipe to Tube

DP Manufacturing Inc. · NSN 4730-01-342-3424 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-342-3424 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-342-3424. Primary manufacturer part number: 3550.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Connection Style: PLAIN (TUBE) FIRST END
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) FIRST END
  • Furnished Items and Quantity: 1 FLAT WASHER AND 1 TUBE COUPLING NUT
  • Nominal Thread Size: 0.125 INCHES SECOND END IN
  • Thread Class: 2A FIRST END A
  • Thread Series Designator: NPT SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-342-3424, 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 DP Manufacturing Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN4730-01-342-3424
Primary Part Number3550
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDP Manufacturing Inc.
StatusACTIVE
Connection StylePLAIN (TUBE) FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) FIRST END
Furnished Items and Quantity1 FLAT WASHER AND 1 TUBE COUPLING NUT
Nominal Thread Size0.125 INCHES SECOND END IN
Thread Class2A FIRST END A
Thread Series DesignatorNPT SECOND END
Connection StylePLAIN (PIPE) SECOND END
Nominal Overall Length2.250 INCHES IN
MaterialSTEEL OVERALL
Nominal Outside Diameter Tube Accommodated0.125 INCHES FIRST END IN
Nominal Thread Size0.312 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6105-00-102-27863567 INTERCHANGEABLE
Motor,alternating Current
Peerless of America Inc
2530-00-363-4185394660C91 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
6635-00-409-88453550 INTERCHANGEABLE
Probe,eddy Current
Olympus America Inc
2520-00-423-0794 INTERCHANGEABLE
Shaft
5985-00-491-7351721862-015 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Raytheon Company Div Rmd Strategic
3030-00-528-4620 INTERCHANGEABLE
Belt,v
5310-00-811-03553550 INTERCHANGEABLE
Washer,flat
International Business Machines Corp Parts Order Center Dept E - 54
6130-01-018-7988003550 INTERCHANGEABLE
Power Supply
Dynalec Corporation
5950-01-046-6983 INTERCHANGEABLE
Coil,radio Frequency
6630-01-066-9000123606 INTERCHANGEABLE
Meter,ph
Newington Electric Co., Inc.
Cross-Reference Index
Part NumberManufacturer
2GL556 Oshkosh Defense Llc (USA)
3550 PRIMARY DP Manufacturing Inc. (USA)
3550-G DP Manufacturing Inc. (USA)
2GL556 Oshkosh Corp (USA)
Related Parts
6105-00-102-2786INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
3567
2530-00-363-4185INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
394660C91
6635-00-409-8845INTERCHANGEABLE
PROBE,EDDY CURRENT
3550
2520-00-423-0794INTERCHANGEABLE
SHAFT
5985-00-491-7351INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
721862-015
3030-00-528-4620INTERCHANGEABLE
BELT,V
5310-00-811-0355INTERCHANGEABLE
WASHER,FLAT
3550
6130-01-018-7988INTERCHANGEABLE
POWER SUPPLY
003550
5950-01-046-6983INTERCHANGEABLE
COIL,RADIO FREQUENCY
6630-01-066-9000INTERCHANGEABLE
METER,PH
123606
4030-01-348-3412INTERCHANGEABLE
GUY ATTACHMENT
3550
5340-01-479-2839INTERCHANGEABLE
CLAMP,BLOCK
3568

Frequently Asked Questions

What is NSN 4730-01-342-3424?

NSN 4730-01-342-3424 is a Adapter,straight,pipe to Tube, manufactured by DP Manufacturing Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-342-3424?

NSN 4730-01-342-3424 has 4 cross-referenced part numbers: 2GL556 (Oshkosh Defense Llc), 3550 (DP Manufacturing Inc.), 3550-G (DP Manufacturing Inc.), 2GL556 (Oshkosh Corp).

What NSN replaces 4730-01-342-3424?

There are 12 known substitutes for 4730-01-342-3424: 6105-00-102-2786, 2530-00-363-4185, 6635-00-409-8845 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3550?

Key specifications for 3550: Connection Style: PLAIN (TUBE) FIRST END; Connection Type: THREADED EXTERNAL PIPE SECOND END; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) FIRST END; End Item Identification: NSN 2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER). 14 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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