Description
Product Overview
The Nemco 56275-1 window gasket is engineered as an exact OEM replacement, offering a precise fit for a wide range of residential and commercial window frames. Measuring 9 x 6 x 5 inches and weighing only 3 ounces, the gasket combines lightweight construction with robust durability. Made from high‑grade polymer, it resists UV exposure, temperature fluctuations, and moisture, ensuring a long‑lasting seal that maintains its elasticity over time. The product carries the Nemco brand reputation for industrial‑grade quality and is listed as #4 in the Window Gaskets best‑seller rank, reflecting its popularity among professionals.
Usage
Designed for both new installations and retrofit projects, this gasket is ideal for homeowners, property managers, and contractors who need a reliable seal for windows in varied environments—from temperate homes to high‑traffic commercial buildings. Its easy‑fit design allows quick installation without special tools, reducing labor time. Whether sealing a single window after a repair or outfitting an entire building, the gasket provides consistent performance in climates ranging from hot summers to freezing winters.

Why Choose Us
Nemco guarantees compatibility with original equipment, meaning the gasket functions exactly like the factory part, preserving the integrity of the window system. The OEM quality ensures reduced risk of premature failure, enhancing safety and extending the lifespan of the window assembly. Using genuine Nemco parts also helps maintain any existing manufacturer warranty, giving customers peace of mind and protecting their investment.
Key Features
- Exact OEM fit – matches original specifications for a seamless replacement
- High‑quality polymer – resists UV, moisture, and temperature extremes
- Lightweight yet durable – 3‑ounce design simplifies handling and installation
- Easy installation – no special tools required, suitable for DIY or professional use
- Maintains warranty – genuine part helps preserve existing equipment warranties
FAQ
What window types are compatible with the 56275-1 gasket?
The 56275-1 gasket is compatible with most standard single‑pane and double‑pane residential windows that originally used Nemco or equivalent OEM seals. Check the model number on your existing gasket to confirm.
Can I install this gasket myself?
Yes. The gasket is designed for straightforward installation with basic hand tools. Clean the window frame, align the gasket, and press it into place for a secure seal.
Will using this gasket affect my window warranty?
Using a genuine Nemco OEM part helps maintain the original warranty, as it meets the manufacturer’s quality standards and specifications.
How does the gasket perform in extreme weather?
The high‑grade polymer material is engineered to withstand UV exposure, temperature swings, and moisture, ensuring a reliable seal in both hot and cold climates.
Is this gasket suitable for commercial applications?
Absolutely. Its durability and compliance with industrial standards make it appropriate for commercial buildings, schools, and other high‑traffic facilities.




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