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MOON AMERICAN Hydrant Cap: Cap, Brass, 4 1/2 in Compatible Pipe Size, Female, NH - Aluminum Fire Hose & Hydrant Caps
MOON AMERICANAluminum Fire Hose & Hydrant Caps

MOON AMERICAN Hydrant Cap: Cap, Brass, 4 1/2 in Compatible Pipe Size, Female, NH

The MOON AMERICAN Hydrant Cap (MPN 662-4521) is a brass, female NH thread cap with pin-lug tightening, designed for 4 1/2-inch compatible pipe size. 3G Electric sources this genuine fire hose and hydrant cap across…

SKU 3G-OTH-546475

Also listed as: 6624521 · 662 4521

Brand
MOON AMERICAN
Item
Hydrant Cap: Cap, Brass, 4 1/2 in Compatible Pipe Size, Female, NH
Category
Aluminum Fire Hose & Hydrant Caps
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MOON AMERICAN
Manufacturer Part Number
662-4521
Type
Brass, Female, NH, Pin Lug
Thread Type
NH
Tightening Method
Pin Lug
Compatible Pipe Size
4 1/2 in

Technical Documents

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MOON AMERICAN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MOON AMERICAN Hydrant Cap (MPN 662-4521) is a brass, female NH thread cap with pin-lug tightening, designed for 4 1/2-inch compatible pipe size. 3G Electric sources this genuine fire hose and hydrant cap across 14 industrial departments, with specialist expertise in combustion, pumps, and controls ensuring accurate fulfillment.

Frequently Asked Questions

What is the MOON AMERICAN Hydrant Cap 662-4521 used for?

The MOON AMERICAN Hydrant Cap (MPN 662-4521) seals a 4 1/2-inch fire hydrant outlet to prevent debris ingress and unauthorized water flow. It is used in municipal fire protection systems, industrial plant fire mains, and commercial building standpipes where a brass, female NH thread cap with pin-lug tightening is required.

What are the specifications of the MOON AMERICAN Hydrant Cap 662-4521?

The MOON AMERICAN Hydrant Cap (MPN 662-4521) is a brass cap with female NH (National Hose) threads and pin-lug tightening. It fits a 4 1/2-inch compatible pipe size. The NH thread type ensures compatibility with standard fire hose couplings and hydrant outlets.

Where to buy the MOON AMERICAN Hydrant Cap 662-4521 worldwide?

3G Electric supplies the MOON AMERICAN Hydrant Cap (MPN 662-4521) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this brass, female NH thread cap with pin-lug tightening for your fire protection system.

How to install the MOON AMERICAN Hydrant Cap 662-4521?

To install the MOON AMERICAN Hydrant Cap (MPN 662-4521), hand-thread the brass female NH cap onto the 4 1/2-inch hydrant outlet. Tighten securely using the pin lugs with a hydrant wrench or spanner. Do not overtighten; ensure the gasket (if present) seats evenly to prevent leaks. Test for seal after installation.

Used in

Common applications for MOON AMERICAN
Fire protection systems — MOON AMERICAN straight-body hydrant gate valves (e.g., SKU 6APD7) used for controlling water flow from fire hydrants during suppression operations.
Municipal water distribution — MOON AMERICAN angle-body hose valves (e.g., SKU 6APG7) installed on hydrant outlets for maintenance or temporary water supply.
Industrial plant water lines — MOON AMERICAN aluminum hydrant gate valves (e.g., SKU 41H521) employed in portable water distribution setups for cleaning or cooling.
Emergency response equipment — MOON AMERICAN 1 1/2 in angle valves (e.g., SKU 6APG8) used on smaller hose lines for rapid deployment in firefighting or dewatering.
Water utility maintenance — MOON AMERICAN brass straight-body valves (e.g., SKU 6APD7) utilized for isolating sections of hydrant systems during repairs or testing.

MOON AMERICAN Products

3G Electric supplies MOON AMERICAN aluminum fire hose & hydrant caps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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