Secure with locking compound 331900245, meets niosh/msha approval for intrinsically safe apparatus, sole source
NSN 6620-01-344-9355
NSN 6685-00-981-5114
NSN 7035-00-574-4223
NSN 5975-00-146-7925
NSN 6135-01-472-9011
NSN 6645-00-498-6869
NSN 6320-01-486-8004
NSN 6620-01-200-8176
NSN 5985-01-036-2757
NSN 4140-01-009-3003
NSN 6240-01-373-1439
NSN 6145-01-501-6174