1、 Comments, suggestions, or questions on this document should be addressed to U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center, ATTN: RDTA-EN/STND/TRANS MS #268, 6501 E. 11 Mile Road, Warren, MI 48397-5000 or emailed to DAMI_STANDARDIZATIONconus.army.mil. Since contact i
2、nformation can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 2510 METRIC MIL-PRF-62419B 1 October 2010 SUPERSEDING MIL-PRF-62419A 22 January 1996 PERFORMANCE SPECIFICATION COMPOSITE MATERIALS FOR M
3、ILITARY VEHICLES This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers composite material for use as a replacement of wood components, such as troop slats, seat racks, and staves in military vehicles. 2. APP
4、LICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been
5、made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The following speci
6、fications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). FEDERAL STANDARDS FED-STD-595/34094 - Green 383 Provided by IHSNot for ResaleNo reprod
7、uction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 2 COMMERCIAL ITEM DESCRIPTIONS A-A-52557 - Fuel Oil, Diesel; for Posts, Camps and Stations (Copies of these documents are available from https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk,
8、 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). A
9、MERICAN SOCIETY FOR QUALITY (ASQ) ANSI/ASQ Z1.4 - Sampling Procedures and Tables for Inspection by Attributes (DoD Adopted) (Copies of this document are available from www.asq.org or American Society for Quality, 600 North Plankinton Avenue, Milwaukee, WI 53203.) ASTM INTERNATIONAL ASTM D543 - Resis
10、tance of Plastics to Chemical Reagents ASTM D570 - Water Absorption of Plastics ASTM D635 - Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position ASTM D695 - Compressive Properties of Rigid Plastics ASTM D790 - Flexural Properties of Unreinforced and Reinforced Plast
11、ics and Electrical Insulating Materials ASTM D792 - Density and Specific Gravity (Relative Density) of Plastics by Displacement ASTM D1505 - Density of Plastics by the Density-Gradient Technique ASTM D1894 - Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting ASTM D4814 - Automo
12、tive Spark-Ignition Engine Fuel ASTM D5486/5486M - Pressure-Sensitive Tape for Packaging, Box Closure, and Sealing ASTM D5590 - Resistance of Paint Films and Related Coatings to Fungal Defacement by Accelerated Four-Week Agar Plate Assay (Copies of these documents are available from www.astm.org or
13、ASTM International, P.O. Box C700, West Conshohocken, PA 19428-2959.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 3 SAE INTERNATIONAL SAE J1703 - Motor Vehicle Brake Fluid (Copies of these documents are available from www.sae.org o
14、r SAE Customer Service, 400 Commonwealth Drive, Warrendale, PA 15096-0001.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in
15、this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.2 Composite materials and treatments. Compo
16、nents shall be fabricated from suitable composite materials and shall possess properties as specified in 3.4 through 3.5.4. Components shall be available in green 383, #34094 of FED-STD-595, when impregnation is required on the drawing. Material shall be available in the lengths, widths and thicknes
17、ses specified on the drawing, and shall be capable of being sawn and drilled (see 4.5.1 and 4.5.2). 3.2.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the materia
18、l meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.2.2 Voids. The finished product shall be free from voids (see 4.5.2 and 6.3.1). 3.2.3 Pimples. Pimples shall not exceed 12.7 millimeters (mm) 0.5 inch (in) in width, 25.4 mm (1
19、 in) in length, and 3.3 mm (0.13 in) in height (see 4.5.2 and 6.3.2). 3.2.4 Pulled surface. Pulled surfaces shall not exceed 0.9 mm (0.035 in) in width, 76.2 mm (3 in) in length, and 3.3 mm (0.13 in) in height (see 4.5.2 and 6.3.3). 3.2.5 Splits. Splits shall not be allowed (see 4.5.2 and 6.3.4). 3.
20、3 Design and construction. The composite components shall conform to the manufacturers design and construction for composite components except when otherwise specified by applicable drawings and data supplied by the procuring activity (see 4.5.2 and 6.2). 3.4 Physical and mechanical properties for c
21、omposite components. Physical testing shall be conducted in the unpainted condition, but finished to all other applicable documents. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 4 3.4.1 Specific gravity. Specific gravity shall be no
22、t less than 0.5, nor greater than 1.8 (see 4.5.4.1). 3.4.2 Water absorption. Water absorption shall not be greater than 0.8 percent (%) (see 4.5.4.2). 3.4.3 Flexural strength. Flexural strength shall not be less than 37,000 kilopascals (kPa) 5400 pounds per square inch (psi) (see 4.5.4.3). 3.4.4 Mod
23、ulus of elasticity. Modulus of elasticity shall be not less than 5200 megapascals (0.75 x 106psi), nor greater than 28,000 megapascals (4 x 106psi) (see 4.5.4.4). 3.4.5 Deflection. Deflection shall not be greater than 1% at 2800 kPa (400 psi), and 10% at 6900 kPa (1000 psi), in the direction of the
24、compressive force exerted by the attaching bolts. If there is no requirement for bolting, deflection shall be measured in the direction of the shortest axis (see 4.5.4.5). 3.4.6 Impact strength. Material shall not split, crack, or shatter under impact of a 3.63 kilogram (kg) (8-pound) ball, 95.36.4
25、mm (3.750.25 in) in diameter, dropped from a 3-meter (10 foot) height (see 4.5.4.6). 3.4.7 Coefficient of sliding friction. The coefficient of sliding friction shall be no less than 0.24 (see 4.5.4.7). 3.4.8 Abrasion resistance. After a 30-second blast of medium grit glass at 8.5 x 10-3cubic meters
26、per second (m3/s) 18 cubic feet per minute (cfm), the material shall have no evidence of splintering or cracking (see 4.5.4.8). 3.4.9 Warp. The maximum warp shall be 4.2 mm per meter of length (0.05 inch per foot of length) (see 4.5.4.9). 3.4.10 Twist. Twist shall not exceed 3.28 degrees per meter o
27、f length (1 degree per foot of length) (see 4.5.4.10). 3.5 Environmental. 3.5.1 Extreme temperature. At a temperature of -51 degrees Celsius (C) -60 degrees Fahrenheit (F), the flexural and strength characteristics of the composite material shall not be reduced by more than 40%. At 71 C (160 F), the
28、 impact and flexural strength characteristics shall not be reduced by more than 8% (see 4.5.5.1). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 5 3.5.2 Chemical resistance. After immersion for 1 week in each of the following material
29、s, the composite material shall stay within 10% of the original weight, and the flexural strength shall not be reduced by more than 10% (see 4.5.5.2). a. Lubricating motor oil, internal combustion engine, grades SAE 10W, SAE 30, SAE 40, and SAE 15W40. b. ASTM D4814 regular or unleaded gasoline. c. H
30、ydrocarbon fuel (combat gasoline), refined, volatile. d. Ethylene glycol (undiluted antifreeze), inhibited, heavy duty. e. SAE J1703 hydraulic brake fluid. f. A-A-52557 diesel fuel. g. Methanol at 10%. 3.5.3 Fire resistance. Burning rate of the composite material shall not exceed 25.4 mm (1 in) per
31、minute (see 4.5.5.3). 3.5.4 Fungus. The composite material shall not sustain any fungal growth (see 4.5.5.4). 3.6 Painting. Prior to painting, all foreign matter shall be removed from the surface using an appropriate solvent. The surface shall then be topcoated with a chemical agent resistant, singl
32、e component, aliphatic polyurethane coating with a dry film thickness of not less than 0.046 mm (0.0018 in). The painted surface shall pass an adhesion test (see 4.5.2, 4.5.6, and 4.5.6.1). 3.7 Workmanship. Workmanship shall be of the quality necessary to produce fabricated composite components free
33、 of defects which affect serviceability and appearance (see 4.5.2). 4. VERIFICATION 4.1 Classification of inspection. The inspection conditions specified herein are classified as follows: a. First article inspection (see 4.2). b. Conformance inspection (see 4.3). 4.2 First article inspection. Unless
34、 otherwise specified (see 6.2), first article inspection shall be performed on preproduction or initial production samples as specified when a first article sample is required (see 3.1). This inspection shall include the tests of 4.5.1 through 4.5.6 (see table I) and the examinations of 4.4 (see tab
35、le II). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 6 TABLE I. Classification of inspections. Title Requirement Inspection First article Conformance Examination Control tests Materials and construction 3.2 and 3.3 4.5.1 X Examinati
36、ons (see table II) 3.2, 3.2.2 thru 3.2.5, 3.3, 3.6, and 3.7 4.5.2 X X Specific gravity 3.4.1 4.5.4.1 X Water absorption 3.4.2 4.5.4.2 X Flexural strength 3.4.3 4.5.4.3 X X Modulus of elasticity 3.4.4 4.5.4.4 X Deflection 3.4.5 4.5.4.5 X Impact strength 3.4.6 4.5.4.6 X X Coefficient of sliding fricti
37、on 3.4.7 4.5.4.7 X Abrasion resistance 3.4.8 4.5.4.8 X Warp 3.4.9 4.5.4.9 X Twist 3.4.10 4.5.4.10 X Extreme temperature 3.5.1 4.5.5.1 X Chemical resistance 3.5.2 4.5.5.2 X Fire resistance 3.5.3 4.5.5.3 X X Fungus resistance 3.5.4 4.5.5.4 X Paint adherence 3.6 4.5.6 X X TABLE II. Classification of de
38、fects. Category Defect Method of examination Major 101 Dimensions affecting interchangeability or easy assembly (see 3.3). SIE 1/ Minor 201 Color (when required), incorrect color, molded in and uniform throughout materials (see 3.2). Visual 202 Voids, splits, pimples, and pulled surfaces (see 3.2.2
39、through 3.2.5). Visual and SIE 203 Appearance, if not the correct surface texture and gloss in the painted condition (see 3.6). Visual 204 Imperfections, cracks, pits, and inclusion of foreign particles (see 3.7). Visual 1/ SIE = Standard Inspection Equipment. 4.3 Conformance inspection. Conformance
40、 inspection shall include the examinations of 4.4 and the tests of 4.5.4.3, 4.5.4.6, 4.5.5.3, and 4.5.6. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 7 4.4 Examination. 4.4.1 Sampling. Samples from an inspection lot for conformance
41、inspection shall be selected in accordance with ANSI/ASQC Z1.4. Any redesign or modification of the contractors standard to comply with specified requirements shall receive particular attention for adequacy and suitability. This element of inspection shall encompass all visual examinations and requi
42、rements listed in table II. Noncompliance with any specified requirement or presence of one or more defects preventing or lessening maximum efficiency shall constitute cause for rejection. 4.5 Methods of inspection. 4.5.1 Materials. Conformance to 3.2 shall be determined by inspection of contractor
43、records providing proof or certification that materials conform to requirements. Applicable records shall include drawings, specifications, design data, receiving inspection records, processing and quality control standards, vendor catalogs and certifications, industry standards, test reports, and r
44、ating data. 4.5.2 Defects. Conformance to 3.2, 3.2.2 through 3.2.5, 3.3, 3.6 and 3.7, shall be determined by examination of the defects listed in table II. Examination shall be visual, tactile, or by measurement with SIE. 4.5.3 Test conditions. Unless otherwise specified (see 6.2), ambient air tempe
45、rature shall be 2310 C (7318 F), barometric pressure shall be 725+50/-75 mm mercury (Hg) (28.5+2/-3 inches Hg), and relative humidity shall be 5030 percent. Unless otherwise specified herein, testing shall be conducted on surfaces in the unpainted condition, but finished to all other applicable docu
46、ments. 4.5.4 Performance. 4.5.4.1 Specific gravity. To determine conformance to 3.4.1, specific gravity determination shall be made in accordance with ASTM D792 and ASTM D1505. Three specimens shall be used for this test. 4.5.4.2 Water absorption. To determine conformance to 3.4.2, water absorption
47、determination shall be made in accordance with ASTM D570. 4.5.4.3 Flexural strength. To determine conformance to 3.4.3, flexural strength determination shall be made in accordance with ASTM D790. 4.5.4.4 Modulus of elasticity in bending. To determine conformance to 3.4.4, modulus of elasticity deter
48、mination shall be made in accordance with ASTM D790. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62419B 8 4.5.4.5 Deflection. To determine conformance to 3.4.5, deflection shall be measured in accordance with ASTM D695. 4.5.4.6 Impact str
49、ength test. To determine conformance to 3.4.6, impact strength determination shall be made by employing a 3.63-kg (8-pound) ball, 95.36.4 mm (3.750.25 in) in diameter, dropped from a vertical height of 3 meters (10 feet) upon a 25 x 76 mm (1 x 3 in) specimen supported on 910 mm (36 in) centers. 4.5.4.7 Coefficient of sliding friction. To determine confor
