A barrier including frame and still used wherever watertight or airtight construction is required. May also be used where local conditions require construction which is nontight. Excludes hatch,marine.
Classification: Doors, windows and frames and thresholds for doors of iron or steel
NSN 5998-00-415-7047
NSN 6220-00-419-0635
NSN 7035-00-922-5700
NSN 5998-00-033-7173
NSN 6645-00-559-3623
NSN 6620-01-483-1138
NSN 6150-01-251-1420
NSN 6685-00-674-2396
NSN 5965-00-285-0745
NSN 5930-00-597-5064
NSN 5996-00-193-3459
NSN 5910-01-535-2054