1、INCH-POUND FF-S-200B AMENDMENT 1 10 June 2005 FEDERAL SPECIFICATION SETSCREWS: HEXAGON SOCKET AND SPLINE SOCKET, HEADLESS The General Services Administration has authorized the use of this amendment that forms a part of FF-S-200B, dated 17 August 2004, by all federal agencies. PAGE 4 3.3: Delete and
2、 substitute: “3.3 Hardness. Alloy steel setscrews shall be hardened by quenching in oil from the hardening temperature and tempered to a hardness of Rockwell 45-53 HRC. Martensitic corrosion-resisting steel setscrews shall be hardened by heat treatment to Rockwell 35-45 HRC. Austenitic corrosion-res
3、isting steel setscrews shall have a hardness of Rockwell 96 HRB 33 HRC and brass alloy setscrews shall have a hardness of Rockwell 55 80 HRF.” Custodians: Preparing Activity: Army AR DLAIS Navy SH Air Force 99 (Project 5305-2570) Review activities: Army AT, AV, CR4, EA, MI Navy AS, MC, OS, YD Air Force 71 AMSC N/A FSC 5305 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
