1-1/2 in FNPT 316 Stainless Steel Locknut, Class 150, 300 psi Max Pressure
Shipping calculated at checkout
The ZORO SELECT - 4381038270 is a stainless steel locknut designed to secure conduit, fittings, or pipe hubs to enclosures, junction boxes, or mounting surfaces by clamping the fitting’s threaded neck and preventing axial movement. Constructed from 316 stainless steel, this locknut is rated for use with air, natural gas, non-potable water, oil, and steam systems within the specified pressure ratings. It is designed to operate within a maximum pressure of 300 psi and steam pressure of 150 psi, conforming to Class 150 pressure specifications. The fitting features FNPT connections compatible with 1 1/2 inch nominal pipe sizes and pipe schedule 150.
Key Features:
- - Material: 316 Stainless Steel providing corrosion resistance.
- - Item Type: Locknut designed to secure fittings and prevent axial movement.
- - Application: Suitable for Air, Natural Gas, Non-Potable Water, Oil, Steam.
- - Pressure Ratings: Maximum Operating Pressure of 300 psi and Maximum Steam Pressure of 150 psi.
- - Connection Type: Female National Pipe Thread (FNPT).
- - Nominal Pipe Size: 1 1/2 inch.
- - Pipe Schedule: Class 150.
- - Hex Size: 2 5/16 inch across flats for wrenching.
- - Outside Diameter: 2-19/64 inch; Overall Length: 7/16 inch.
- - Standards: Material conforms to ASTM-A-351, Threads conform to ANSI B1.20.1, Meets MSS-SP-114 Class 150 ratings.
- - Color: Silver finish.
- - Bolt Hole Center to Center: 1 1/2 inch.
- Ship Pack Height: 1.5
- Ship Pack Length: 7.5
- Ship Pack Width: 6
If you qualify for sales tax exemption, please submit your exemption details and supporting documents. Our team will review your request, and once approved, your account will be updated to receive tax-exempt checkout on eligible purchases.
If you can't find the product you're looking for, send a quote request below.
Return policy
You have 60 days to return the product. Returned items must be in the original packaging, contain all components, and be in new condition. Returns may require additional information or a photo of the item(s) to process the return. Returns received without the proper return label may take more than 10 business days to credit.
Shop.water-services.us reserves the right to refuse or limit any returns that, in Shop.water-services.us’s sole judgment, appear to be fraudulent, abusive, in violation of these terms, or otherwise inappropriate.