MIL-PRF-18949A, PERFORMANCE SPECIFICATION: PROJECTILES, ILLUMINATING, LOCALIZED HEAT TREATMENT OF (5 JAN 1976) [SUPERSEDING MIL-P-18949]

MIL-PRF-18949A, PERFORMANCE SPECIFICATION: PROJECTILES, ILLUMINATING, LOCALIZED HEAT TREATMENT OF (5 JAN 1976) [SUPERSEDING MIL-P-18949]., This specification covers the localized heat treatment requirements of an inner annulus of the body under the band seat on illuminating projectiles, and supplements the requirements of the projectile specification.