Alemite LAGN-313650 Air Vent Breather Fitting 3/8" PTF SAE Short Thread 1-1/2" OAL

The Alemite LAGN-313650 is a two-baffle air vent breather fitting designed to maintain proper internal pressure in gear-driven equipment. Constructed from carbon steel with trivalent zinc plating, this breather fitting installs easily into any 3/8" PTF SAE short-thread port and provides reliable, unrestricted airflow to prevent pressure buildup in enclosed housings.

Alemite breather fittings are a trusted solution for transmissions, differentials, speed reducers, axles, gear housings, and similar sealed mechanical assemblies. The dual-baffle design helps protect against dirt contamination while allowing air to freely equalize internal pressure—extending the service life of seals, lubricants, and surrounding components.

Key Features:

• Thread: 3/8" PTF SAE Short
• Overall Length (OAL): 1-1/2" (1.5")
• Shank Length: 0.52"
• Hex Size: 3/4"
• Thread Length: 0.36"
• Design: Two-baffle construction
• Material: Carbon steel
• Finish: Trivalent zinc plating for corrosion resistance
• Corrosion Resistance: Exceeds 72-hour salt spray test
• No airflow restrictions
• Conforms to SAE J534 standards for automotive OEM use
• Alemite Manufacturing is TS/ISO 16949 certified

Also referenced as Alemite part number 313650 and ORS part number 025-LAGN-313650. Alemite, the inventor of the Zerk fitting, is a recognized global leader in lubrication fittings for automotive and industrial applications.