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    DLA MS27129 REV D-2012 WASHER FINISHING - COUNTERSUNK.pdf

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    DLA MS27129 REV D-2012 WASHER FINISHING - COUNTERSUNK.pdf

    1、 AMSC N/A FSC 5310 MS27129D 20 January 2012 SUPERSEDING MS27129C 18 August 1987 DETAIL SPECIFICATION SHEET WASHER, FINISHING - COUNTERSUNK This specification sheet is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described h

    2、erein shall consist of this specification sheet and procurement specification NASM45595. BCA8082E (RADIUS)DFSPHERICALRADIUS (REF)FIGURE 1. Washer, Finishing-Countersunk. INCH-POUND Inactive for new design after 3 February 2000. Provided by IHSNot for ResaleNo reproduction or networking permitted wit

    3、hout license from IHS-,-,-MS27129D 2 TABLE I. Dash numbers and dimensions DASH NUMBER NOM SIZE A B C D E F .003 BRASS STEEL CRES MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN 1 2 3 .112 .247 .237 .385 .365 .096 .076 .036 .015 .027 .021 .012 4 5 6 .138 .303 .293 .448 .428 .102 .082 .036 .015 .031 .025 .014

    4、 7 8 9 .164 .357 .347 .541 .521 .112 .092 .036 .015 .031 .025 .014 10 11 12 .190 .437 .412 .603 .583 .122 .102 .036 .015 .040 .032 .018 13 1/ 14 1/ 15 1/ .216 .470 .455 .697 .677 .156 .136 .051 .031 .040 .032 .018 16 17 18 .250 .546 .526 .791 .771 .170 .150 .051 .031 .040 .032 .018 19 20 21 .3125 .6

    5、78 .658 .947 .927 .222 .202 .051 .031 .044 .036 .020 22 23 24 .375 .810 .785 1.135 1.115 .260 .240 .051 .031 .055 .045 .025 1/ Inactive for new design after 20 March 1974. Requirements: 1. Material. Brass, in accordance with ASTM B36/B36M, UNS C26000 or UNS C26800, quarter or half hard. Steel, in ac

    6、cordance with ASTM A108, grade 1018 (UNS G10180) or grade 1212 (UNS G12120) or ASTM A510, Grade 1020 (UNS G10200) Corrosion-resisting steel, in accordance with ASTM A666 for cold worked grades, ASTM A693 for precipitation hardening grades and ASTM A240/A240M for all other grades. 2. Protective coati

    7、ng. Brass-nickel plated, in accordance with SAE AMS-QQ-N-290, Class 1, or Chromium plated in accordance with SAE AMS-QQ-C-320, Class 1. Steel cadmium plate in accordance with SAE AMS-QQ-P-416, Type II, Class 3. Corrosion-resistant steel, descaled and passivated in accordance with ASTM A380 3. Hardne

    8、ss. Washers shall be 104 HB minimum. 4. Part number. The part number shall consist of the basic MS number, followed by a dash number from Table I. Example: MS27129 3 Dash number from Table 1 Basic MS number MS27129-3 indicates - Washer, finishing countersunk; CRES, passivated, nominal size .112; .38

    9、5 maximum outside diameter; .012 thickness. Notes: 1. All dimensions in inches. 2. Remove all burrs and sharp edges before finish. 3. These washers can be used with both 82 and 100 countersunk screws 4. In the event of a conflict between the text of this standard and the references cited herein, the

    10、 text of this standard shall take precedence. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27129D 3 5. Referenced government (or non-government) documents of the issue listed in that issue of the Department of Defense Index of Specifications and

    11、 Standards (DODISS) specified in the solicitation form a part of this standard to the extent specified herein. 6. Changes from previous issue: Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians: Prepari

    12、ng activity: Army - AR DLA - IS Navy - AS Air Force - 99 (Project 5310-2011-002) NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-


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