A valve designed to relieve internal pressure from gear housings, automotive axles, differentials, transmissions and the like. May or may not be threaded on one end. For items with relief pressure ratings see valve (1), safety relief.
NSN 5925-00-466-7308
NSN 6240-00-117-9957
NSN 5999-01-356-2862
NSN 6650-01-544-9137
NSN 5855-01-359-8592
NSN 6110-01-018-3654
NSN 5915-01-555-8081
NSN 6685-01-419-6255
NSN 5965-01-043-9357
NSN 6135-01-322-4655
NSN 5930-00-507-7175
NSN 5855-01-062-5655