Black 3/8 x 5-1/2 inch pipe nipple from Pro Fire and Safety, showing a metal threaded pipe fitting for plumbing applications.

3/8" x 5-1/2" Nipple Black

$1.41
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Description

This 3/8″ × 5-1/2″ black steel nipple is a welded, threaded male-to-male pipe fitting made from schedule 40 carbon steel. Designed for high pressure applications, it’s commonly used in plumbing, fuel gas lines, or fire suppression systems. It meets ASTM A-53 and ANSI B1.20.1 threading standards for reliable durability and performance. 

Key Features

  • Schedule 40 carbon steel construction for strength and durability.

  • Welded design ensures solid, leak-resistant connections.

  • Male NPT threading on both ends, compliant with ANSI/ASME B1.20.1.

  • Compatible with black-iron or steel fittings for plumbing, gas, steam, or fire-suppression piping.

  • Rated for a broad temperature range, from very low to moderately high (e.g. –200°F to 150°F), per black steel nipple standards.

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