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 6610-01-448-2590
NSN 6110-00-170-6520
NSN 5990-01-626-3840
NSN 5990-01-529-6347
NSN 5998-01-606-3910
NSN 7035-01-524-4895
NSN 5990-00-698-3963
NSN 6620-01-415-5803
NSN 5945-00-970-9130
NSN 5985-01-316-0537
NSN 5895-01-608-2965
NSN 7035-00-703-3535