Overview Reviews Product Description Made in the USA for the military!! Rubber sleeve orange in color. Measures approx 3" tall x 1/8" thick. Measures 4 inch in diameter. New. NSN# 4720-01-377-6620. Hose, air duct. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Military Issue Rubber Sleeve Orange Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments