Alemite LAGN-1693 90-Degree Leakproof Grease Fitting 1/8" NPTF 3000 PSI

The Alemite LAGN-1693 is a 90-degree leakproof grease fitting (Zerk fitting) with a 1/8" NPTF male thread, designed for lubrication points that require a positive, leak-free seal. This special-purpose fitting is engineered for light oils and greases in applications where maintaining back pressure is critical.

Unlike standard grease fittings that use a ball check valve, this leakproof fitting features a Buna-N disk check valve that creates a superior seal and prevents grease from escaping between service intervals. The 90-degree head angle makes it ideal for tight or hard-to-reach lubrication points on industrial machinery, heavy equipment, and automotive applications.

Key Features:

• 90-degree head angle for access to restricted or angled lubrication points
• Buna-N disk check valve instead of a ball check — provides a true leakproof seal
• 1/8" NPTF (National Pipe Taper Fuel) male thread — 1/8" x 27 thread pitch
• Maximum back pressure: 3,000 PSI
• Overall length: 31/32" — compact profile for tight spaces
• Shank length: 25/64"
• Hex size: 7/16" for standard wrench installation
• Constructed of steel with zinc plating for corrosion resistance

Important Usage Notes: To maintain check valve reliability, keep input passages free of foreign particles. In critical applications where back pressure must be maintained, redundancy of seal is recommended.