Approx 1.500 in. Lg, 10.750 in. Od, 8.625 in. Id, used on flying outfit, high altitude part number a/p22s6a
Classification: Military wearing apparel of all types and materials, including footwear and headwear
NSN 5855-01-100-3272
NSN 5905-01-216-3981
NSN 6150-01-197-4427
NSN 5835-01-435-4139
NSN 6220-01-500-0740
NSN 5855-00-014-5008
NSN 5920-00-965-7031
NSN 6320-01-247-0898
NSN 5945-01-289-1173
NSN 5975-00-357-6136
NSN 5910-00-216-8081
NSN 6645-00-012-5834