"Type: This specification covers all-metal@ self-locking nuts@ plate nuts@ and gang channel nuts made of a carbon or low-alloy steel. Application: For use up to 450?? (230??) where high strength nuts with unified ""J"" (MIL-S-8879) thread form are required."
SAE AMS7252B-1980 history
1990SAE AMS7252C-1990 "NUTS@ SELF-LOCKING@ STEEL High Strength@ All Metal 450 degrees F (230 degrees C) Use@ Unified ""J"" (MIL-S-8879) Thread Form"
1980SAE AMS7252B-1980 "NUTS@ SELF-LOCKING@ STEEL High Strength@ all metal 450 degrees F (230 degrees C) Use@ Unified ""J"" (MIL-S-8879) Thread Form"
1973SAE AMS7252A-1973 "NUTS@ SELF-LOCKING@ STEEL High Strength@ Prevailing Torque@ all metal 450 degrees F (230 degrees C) Use@ Unified ""J"" (MIL-S-8879) Thread Form"
1969SAE AMS7252-1969 NUTS, SELF-LOCKING, STEEL High Strength, Prevailing-Torque, All Metal 450 F (232 C) Use, Unified "J" (MIL-S-8879) Thread Form