1、MATERIAL SYMBOL OPTIONAL TABLE I. Mechanical properties.l/ I strength21 t Tensile 0.2 percent Elongation symbol (minimum) Identification offset in 2 inches lb/in2 lb/in2 OK“ (OR) 130,000 90,000 20. o Ni-Cu K Percent - - 1/ As determined by roundspecimens of AST“ E 8. - 2/ Fasteners 1“ and over - 85,
2、000 lb/in2, minimum. Intended use: Nick dlelributlon unlimlted .r Cvst MILITARY STANDARD BOLT, STUD, AND SOCKET CAP HEAD h. TITLE INTERNATIONAL Navy-SH INTEREST SCREW, NICKEL-COPPER-ALUMINUM ALLOY MS18116(SH) OCUREMENT SPECIFICATION IL-S-1222 or FF-S-86 SHEET 1 OF 2 (Project 53GP-N013) Provided by I
3、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-REQUIREMENTS (Continued) 5. Lot identification: All fasteners identified by one lot number shall be of the same nominal size and threading, same heat or melt of metal, same processing of bar stock and fastener blank
4、s, and same heat-treat batch or continuous heat treating process controlled to the same age hardening limits. The following numbers are currently reserved for other nonferrous fastener materials and shall not be used for lot identification: 8 24T4 464 630 661 8F , 61T6 464H 639 675 8M 410 510 651 B8
5、 416 510H 655 B8M 462 614 6558 6. Sampling: Sampling of fasteners shall be as required by the 7. Examination for seams acquisition specification. and cracks: Samples selected in accordance with the quality assurance requirements of the applicable acquisition specification, shall be subjected to dye
6、penetrant examination as specified in MIL-STD-271 for the presence of defects such as seams or cracks as deep as, or visible in, the root of the thread, or circumferential defects at the fillet radius of boltsand cap screws. Any fastener in the sample containing one or more defects, thus indicated,
7、shall be considered a defective towards rejection of the lot. 8. Certification: Each delivery shall be accompanied by a certificate identified by the lot number(s) and include the following: (a) Copy of report covering mechanical test data and liquid penetrant inspection results. covering heat or me
8、lt number(s) of the material used, processing of bar stock and fastener blanks, thread forming and gaging, dimensional control employed, and heat treatments. (b) Statement that records are available NOTES 1. Traceability: Certification required above constitutes traceability 2. Referenced documents
9、shall be of the issue in effect on date of for critical systems. invitations for bids, or request for proposal except that referenced adopted industry documents shall give the date of the issue adopted. acquisition documents referenced herein. 3. For quality assurance purposes, this standard takes p
10、recedence over MSG NIA I - ( I c . . . - - . . . . . STRIBUTION STATEMENT A Approved for publlc release; dlslrlbutlon unllmlted A. N-SH lNTERHATlOHAL NTEREST TITLE BOLT, STUD, AND SOCKET CAP HEAD II, C“., MILITARY STANDARD SCREW, NICKEL-COPPER-ALIN ALLOY MS18116(SH) a a D ri 3 N X r L W m QI rl (d G 1 h w c o . -I n 9 -J n n o -I E d (d 1 m I I I OCUREMENT SPECIFICATION 4IL-S-1222 or FF-S-86 SHEET OF 2 2 (Project 53GP-NO13) f7U.S. GOVERNMENT PMNTlNG OFFICE t988 - 5(H633/9M Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
