1、 INCH-POUND MIL-PRF-6855/1A 15 June 2009 SUPERSEDING MIL-R-6855/1 16 February 1987 PERFORMANCE SPECIFICATION SHEET RUBBER, SYNTHETIC, SHEETS This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirement for acquiring the product described herein
2、 shall consist of this specification sheet and MIL-PRF-6855. REQUIREMENTS: Part numbers: Part numbers shall consist of the prefix M, specification number, specification sheet number, and a six-digit dash number assigned using tables I, II, III, and IV herein as shown in the following example: M 6855
3、 1/ -XX XX X XPrefix for Military Specification Specification Number Specification Sheet Number Two-Digit Classification Number (table I). Two-Digit Thickness Number (table II). One-Digit Length Number (table III). One-Digit Width Number (table IV). Example: M6855/1-XXXXXX Dimensional tolerances: To
4、lerances of MIL-PRF-6855, table I and II, shall apply to sheet width and thickness respectively. Tolerance for sheet lengths shall be -0 percent, +3 percent of the specified length. Surface finish: All synthetic rubber sheet surfaces shall be smooth and free from cloth imprint, pin holes, flash, or
5、any other imperfections which may impair serviceability. VERIFICATION: Inspection and test of synthetic rubber sheets shall be in accordance with MIL-PRF-6855, Section 4, VERIFICATION. AMSC N/A FSC 9320 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
6、MIL-PRF-6855/1A TABLE I. Type, class, grade. Classification Number Classification of Requirements 01 Class 1 Grade 30 02 Class 1 Grade 40 03 Class 1 Grade 50 04 Class 1 Grade 60 05 Class 1 Grade 70 06 Class 1 Grade 80 07 Type A Class 2 Grade 30 08 Type A Class 2 Grade 40 09 Type A Class 2 Grade 50
7、10 Type A Class 2 Grade 60 11 Type A Class 2 Grade 70 12 Type A Class 2 Grade 80 13 Type B Class 2 Grade 30 14 Type B Class 2 Grade 40 15 Type B Class 2 Grade 50 16 Type B Class 2 Grade 60 17 Type B Class 2 Grade 70 18 Type B Class 2 Grade 80 19 Class 3 Grade 30 20 Class 3 Grade 40 21 Class 3 Grade
8、50 22 Class 3 Grade 60 23 Class 3 Grade 70 24 Class 3 Grade 80 25 Type A Class 4 Grade 30 26 Type A Class 4 Grade 40 27 Type A Class 4 Grade 50 28 Type A Class 4 Grade 60 29 Type A Class 4 Grade 70 30 Type A Class 4 Grade 80 31 Type B Class 4 Grade 30 32 Type B Class 4 Grade 40 33 Type B Class 4 Gra
9、de 50 34 Type B Class 4 Grade 60 35 Type B Class 4 Grade 70 36 Type B Class 4 Grade 80 37 Class 5 Grade 30 38 Class 5 Grade 40 39 Class 5 Grade 50 40 Class 5 Grade 60 41 Class 5 Grade 70 42 Class 5 Grade 80 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
10、HS-,-,-MIL-PRF-6855/1A TABLE II. Sheet thickness T. Sheet Thickness Number T (Inches) 04 0.015 08 0.031 12 0.062 16 0.094 20 0.125 24 0.156 28 0.187 32 0.250 36 0.312 40 0.375 44 0.438 48 0.500 52 0.562 56 0.625 60 0.750 64 0.875 68 1.000 72 1.250 76 1.500 TABLE III. Sheet length L. Sheet Length Num
11、ber L (Inches) 1 24.000 2 36.000 3 48.000 4 60.000 5 72.000 6 120.000 7 144.000 8 300.000 TABLE IV. Sheet width W. Width Number W (Inches) 1 12.000 3 18.000 5 24.000 7 36.000 9 40.000 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6855/1A
12、4 Metric Conversion Chart1/Inch mm Inch mm 0.015 0.38 0.875 22.23 0.031 0.79 1.000 25.40 0.062 1.57 1.250 31.75 0.094 2.39 1.500 38.10 0.125 3.18 12.000 304.80 0.156 3.96 18.000 457.20 0.187 4.75 24.000 609.60 0.250 6.35 36.000 914.40 0.312 7.92 40.000 1016.00 0.375 9.52 48.000 1219.20 0.438 11.13 6
13、0.000 1524.00 0.500 12.70 72.000 1828.80 0.567 14.27 120.000 3048.00 0.625 15.88 144.000 3657.60 0.750 19.05 300.000 7620.00 NOTE: 1/See general note 2. GENERAL NOTES TO TABLES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Use of this specification sh
14、eet for US Army Communications-Electronics Command is restricted to Class 4 and Class 5 synthetic rubber sheets. 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. Custodian(s): Prepar
15、ing Activity: Army MR Navy SH Navy SH (Project 4720-2008-018) Air Force 11 DLA CC Review Activities: Army AR, AT, AV, CE, CR, MI Navy AS, OS, YD Air Force 71, 99 DLA GS, IS 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 http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
