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Flexmaster Pipe & Tube Joint, 6.00 Inch Pipe, Straight

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Description & Features

Designed for up to 300 psi service, this plated steel joint accommodates angular misalignment up to 4° per end, making it well suited for straight-run pipe connections where minor alignment variation is present. The Flexmaster Pipe & Tube Joint, 6.00 Inch Pipe, Straight features dual compression-style female ends sized for 6-inch pipe with a 6.625-inch OD, and uses a Buna-N seal (part NK1000063C600) to maintain a reliable connection across a working temperature range starting at -30°F. Manufactured by Danfoss Power Solutions (Aeroquip) to a torque rating of 300 in-lbs, the standard-style joint is intended to seal pipe and tube connections, not to act as a structural restraint. External guides, anchors, and hangers must be used to control movement within the system. This product carries an EAR99 export classification and catalog number C1KW39.

SKU: NH1600C600B0650

Supplier Part Number (MPN): NH1600C600B0650

Alternate Part Numbers: C1KW39

Specifications

Application
General purpose
B
8.86
C
11.24
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13553
End Gender 2
13555
End Size 1
6
End Size 2
6
End Type 1
Compression
End Type 2
Compression
Materials
Plated Steel
Minimum Working Temperature
-30
Pipe O.D.
6.63
Pipe Size
6
Seal Material
Buna-N
Seal Part if Included
NK1000063C600
Supplier Part Number
NH1600C600B0650
Thread Sealant
No
Torque Rating
300 IN-LBS
Torque Rating
300 IN-LBS
Type
STD
Alternate Part Numbers
Alternate Part Number C1KW39, Alternate Part Number MINO-00925X14292
Product Weight
15.07 lbs

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Product Questions & Answers (1)

Question by: Phil C on Oct 6, 2025, 4:48 PM
Got a 6-inch line with just a little bit of droop to it where two sections meet. Think this joint can handle that kind of thing or do I need something else?
Answer by: Customer Support on Oct 8, 2025, 6:06 AM
Four degrees of angular misalignment per end is what this joint is built to handle, so a slight droop or minor offset in a straight run is well within its range. It uses dual compression-style female ends sized for 6-inch pipe with a 6.625-inch OD, so as long as your pipe matches those dimensions, it should fit up without trouble. Just keep in mind the joint itself isn't meant to hold the line in place structurally. You'll still need your hangers, anchors, and guides doing their job to keep the system from moving around.

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