Part #: PBC43A

4-Inch Nylon Bottom Outlet Cap with Carbon Steel Chain

The Salco Products (PBC43A) 4-Inch Nylon Bottom Outlet Cap with Carbon Steel Chain is made out of corrosion-resistant nylon material with a 2-inch nylon plug. It fits a standard 5-1/4-inch railroad thread for application to any car manufacturer’s nozzle. Comes with 21-inches of 3/8-inch, carbon steel, chain with 15 links. AAR Approval # E202138

Key features

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Ergonomic lightweight belly cap that reduces operator injuries from the handling of heavy and awkward steel designs.

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Constructed of corrosion-resistant nylon material.

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Less force/torque required to apply and remove cap.

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Lightweight - approximately three (3) pounds.

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Cap assembly available with: Cable, Stainless Steel Chain, Carbon Steel Chain.

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A broad range of gasket material options allows for use in various commodities.

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Standard 5-1/4-inch RR thread allows for application to any manufacturer's nozzle.

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Steel reinforced hex head increases grip area to reduce wrench slippage.

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AAR Approval # E202138

Specifications

Cap Material
Nylon
Securement Material
Carbon Steel
Securement Type
Chain

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AAR Approval: E-202138

Resources

Product Card • December 17, 2025

Plastic Bottom Outlet Cap