MS51421A (NOTICE), MILITARY STANDARD: SEAL, GRADED, BOROSILICATE GLASS TO COPPER TUBING (20 AUG 1991) [NO SUPERSEDING DOCUMENT].
MS51421A (NOTICE), MILITARY STANDARD: SEAL, GRADED, BOROSILICATE GLASS TO COPPER TUBING (20 AUG 1991) [NO SUPERSEDING DOCUMENT].