1、MIL-PRF-b219A 979990b 2010242 ir53 1 INCH-POUNDS I 7 November 1995 SUPERSEDING MIL-V-62198(AT) 31 May 1983 MIL-PRF-62198A(AT) PERFORMANCE SPECIFICATION VALVE, SELECTOR, HYDRAULIC DUMP This specification is approved for use within U.S. Army Tank- automotive and Armaments Command, Department of the Ar
2、my, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the M60 tank selector valve assembly which allows the pressure of the hydraulic system to be dumped (see 6.1). Beneficial comments (recommendations, additions, del
3、etions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-E, Warren, MI 48397-5000 by using the Standardization Document Improvement Proposal (DD Form 14261, appearing at the end of this docum
4、ent, or by letter. AMSC N/A FSC 4820 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-b219A M 9990b 2010243 39T M 2. APPLICABLE DOCUMENTS 2.1 General. The docum
5、ents listed in this section are specified in sections 3 and 4 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 made to ensure the completeness of this lis
6、t, document users are cautioned that they must meet ali specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, and standards. The following specifications, and standards, form a part of this do
7、cument to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS DEPARTMENT OF DEFENSE
8、 MIL-H-46170 - Hydraulic Fluid, Rust Inhibited, Fire-resistant, Synthetic Hydrocarbon Base. STANDARDS DEPARTMENT OF DEFENSE MIL-STD-810 - Environmental Test Methods. MIL-STD-1246 - Product Cleanliness Levels and Contamination Control Program. (Unless otherwise indicated, copies of the above specific
9、ations, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 191 11 -5094.) 2.2.2 Other.-GaY_eniment documents, .drawings, and publications. The following other Government documents, drawings, and publications form a p
10、art of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - _ MIL-PRF-b23SA = 777970b 2030244 226 MIL-PRF-62198A(AT) DRAWINGS DE
11、PARTMENT OF DEFENSE 1 1674266 - Valve, Selector. (Copies of these drawings are available from the U.S. Army Tank-automotive and Armaments Command, Warren, MI 48397-5000.) 2.3 Nnnr.G.oscernment publications. The following documents form a part of this document to the extent specified herein. Unless o
12、therwise specified, the issues of the documents that are adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the non-government documents that are current on the date of the soli
13、citation (see 6.2). AMERICAN SOCIETY FOR QUALITY CONTROL (ASQC) ANSI/ASQC 21.4 - Sampling Procedures and Tables for Inspections by Attributes, (Application for copies should be addressed to The Society for Quality Control, P.O. Box 305,611 E. Wisconsin Ave., Milwaukee, WI 53201-4606.) 2.4 Order of p
14、recedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREM
15、ENTS 3.1 First article. When specified (see 6.2), a first article sample shall be subjected to first article inspection in accordance with 4.2. 3.2 Materials. Materials used shall be in accordance with the manufacturers materials specifications for valve selector assemblies. The materials shall be c
16、apable of meeting all of the operational and environmental requirements specified herein. Recovered materials shall be used to the maximum extent practicable (see 4.6.1). 3.2.1 Material compatibility. Selector valve assembly materials shall be compatible with hydraulic fluid per MIL-H-46170 (see 4.6
17、.1). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-62lt9A m 999990b 2010245 1b2 W 3.2.2 Corrosion control. The selector valve assembly shall be fabricated from materials that are inherently corrosion resistant or are permanently treated
18、to prevent forms of corrosion and deterioration which affect system performance (see 4.6.1). 3.3 Design and construction. Selector valve assembly shall conform to the manufacturers design and construction except for the envelope dimensions; port hole dimensions, locations, and depth; lever swing rad
19、ius and location; and mounting dimensions which shall conform to drawing 11674266 and other applicable drawings (see 4.6.2). 3.3.1 Interchangeability. All selector valve assemblies shall be interchangeable as to fit, form, and function with other manufacturers assemblies having the same military par
20、t number (see 4.6.2). 3.3.2 Weight. The dry weight of the selector valve assembly shall not exceed 2 pounds (0.9 kilogram (kg) (see 4.6.2). 3.4 Performance. 3.4.1 Torque. The torque required to move the handle out of the open or closed detented positions shall be 8 + 6 inch pounds (0.9 + 0.68 Newton
21、-meter (N-m) with 1000 pounds per square inch gage (psig) (6.88 Megapascal (MPa) of hydraulic fluid applied to port 1 with port 2 blocked (see drawing 11674266). The torque required to move the handle between detent positions shall not exceed 15 inch pounds (1.7 N-m) (see 4.6.4). 3.4.2 Pressure drop
22、. Pressure differential between port 1 and port 2 shall not exceed 750 psi (5.16 MPa) at a minimum flow of 5 gallons per minute (gpm) (18.9 liters per minute (L/min) when the handle is in the open position. Pressure differential at environmental extremes shall not exceed 1500 psi (7.9 MPa) (see 4.6.
23、5). 3.4.3 External leakage. There shall be no external leakage of the selector valve (see 4.6.6). 3.4.4 Internal leakage. With the valve handle in the closed position, the leakage from port 2 shall not exceed 0.003 cubic inches (in3) (0.05 cubic centimeters (cm3) per minute at any pressure applied t
24、o port 1 up to 3000 psig (20.6 MPa). Leakage from port 2 shall not exceed 0.006 in3 (0.1 cm3) per minute after endurance performance (see 4.6.7). 3.4.5 Proof pressure. Selector valve, in the closed position, shall withstand a minimum pressure of 4500 psig (31 MPa) for a duration of 3 minutes without
25、 permanent deformation, rupture, or external leakage (see 4.6.8). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-b239A = 9999906 2030246 OT = MIL-PRF-62 198A (AT) 3.4.6 Eur&.pressiire. Selector valve, in the closed position, shall withstan
26、d a minimum of 75 psig (51.6 MPa) for a duration of 2 minutes without bursting. The valve need not be operable after application of this pressure (see 4.6.9). 3.4.7 EriYiranmentakonditim. Selector valve shall operate as specified herein under the temperature, shock and vibration conditions specified
27、 in 4.6.10. 3.4.7.1 Highkmperaiure. Selector valve shall operate as specified herein after exposure to ambient temperature of 160“Fahrenheit (OF) (71 O Celsius (OC) for 36 hours. Valve assembly shall operate during and after exposure to 125F (51C) (see 4.6.10.1). 3.4.7.2 Laxtemperature. Selector val
28、ve shall operate as specified herein after exposure to ambient temperature of -65F (-54C) for a minimum of 12 hours. Valve assembly shall operate during and after exposure to -25F (-31 OC) (see 4.6.10.2). 3.4.7.3 Shock resistance. Selector valve shall operate as specified herein, after exposure to a
29、 shock impulse of 40 gravity units (g) for 18 + 3 milliseconds (ms), half sine (see 4.6.10.3). 3.4.7.4 Vibration resistance. Selector valve shall operate as specified during and after exposure to vibration levels profiled in figure 1 for an 80 minute period (including up to four resonance dwells of
30、13.5 minutes each) with each of three mutually perpendicular axes (see 4.6.10.4). 3.4.8 Endurance. Selector valve assembly shall operate as specified herein after being subjected to 10,000 actuation cycles with 1,000 psig (6.88 MPa) applied to port 1 while port 2 is blocked (see 4.6.11). 3.5 Interna
31、l cleanliness. Selector valve assembly shall meet the cleanliness requirements as specified in 4.6.12. 6.2): a. b. d. e. f. C. 3.6 Identification and marking. The selector valve assembly shall include, as a minimum, the following information permanently marked on the exterior of the assembly (see Ma
32、nufacturers identification Serial number Military part number Federal stock number Manufacturers part number Date of manufacture 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-62LSBA 7779906 2030247 T35 m MIL-PRF-62 198A (AT) g. Contract
33、number h. US. 3.7 Workmanship. Workmanship shall be of the quality necessary to produce selector valves free from defects which may affect their serviceability or reduce, limit, or compromise performance (see 4.6.2). 3.8 Color. The color of exposed nonfunctional parts of the selector valve assembly
34、shall be white (see 4.6.2). 4. VERIFICATION 4.1 Classification of inspection. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2) b. Conformance inspections (see 4.3) 4.2 First article inspection. First article inspection shall be performed o
35、n two selector valve assemblies when a first article sample is required (see 3.1). This inspection shall include the examinations of 4.4 (see table I) and the tests of table II. TABLE I. Classification of defects. Category Major: 101 102 103 Minor: 20 1 202 Defect Dimensions affecting design or inte
36、rchangeability not within tolerance (see 3.3 and 3.3.1). Material not compatible with hydraulic fluid per MIL-H-46170 (see 3.2.1). Improper weight (see 3.3.2). Dimensions not affecting design or interchangeability Improper color (see 3.8). not within tolerance (see 3.3 and 3.3.1). Method of inspecti
37、on SIE I/ Visual SIE 1/ SIE Visual 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6219A m 9999506 2030248 971 m Category k MIL-PRF-62198A (AT) TABLE I. Classification of defects. (continued) Defect Improper marking (see 3.6). Improper work
38、manship (see 3.7). 1/ SIE = Standard Inspection Equipment TABLE II. Classification of inspections. Characteristic Torque Pressure drop External leakage Internal leakage Proof pressure Burst pressure High temperature Low temperature Shock resistance Vibration resistance Endurance Requirement 3.4.1 3.
39、4.2 3.4.3 3.4.4 3.4.5 3.4.6 3.4.7.1 3.4.7.2 3.4.7.3 3.4.7.4 3.4.8 Inspection 4.6.4 4.6.5 4.6.6 4.6.7 4.6.8 46.9 4.6.10.1 4.6.10.2 4.6.10.3 4.6.10.4 4.6.1 1 First article X X X X X X X X X X X Method of inspection Visual Visual 100% acceptance X X X X X X 4.3 Conformance inspection. Conformance inspe
40、ction shall include the examinations of 4.4 and the tests of 4.5. 4.4 Examination. 4.4.1 Sampling. Samples from an inspection lot for conformance inspection shall be selected in accordance with ANSUANSI 21.4. Each sample selected shall be inspected as specified herein for the defects listed in table
41、 I. Conformance to a lot shall be accepted when zero (O) defects are found and rejected when one (1) or more defects are found. 4.5 Acceptance tests (100 percent). Each selector valve assembly shall be subjected to the inspections specified in table II. Failure of any inspection shall be cause for r
42、ejection. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62 198A(AT) 4.6 Methods of inspection. 4.6.1 Materials. Conformance to 3.2 thru 3.2.2 shall be determined by inspection of contractor records providing proof or certification that ma
43、terials 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 rating data. 4.6.2 Defects. Conformance to 3.2.1,
44、 3.3, 3.3.1, 3.3.2, 3.6, 3.7, and 3.8 shall be determined by examination for the defects listed in table I. Examination shall be visual, tactile or by measurement with SIE. 4.6.3 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be performed in accordance with the fo
45、llowing: a. Ambient temperature: 70 + 20F (21 + 11 OC) b. Hydraulic fluid temperature: 100 + 10F (38 + 6C) c. Hydraulic fluid operating pressure: 3000 psig (20.6 MPa) 4.6.4 T.mqueiest. To determine conformance to 3.4.1, 1000 psig (6.88 MPa) shall be applied to port 1 with port 2 blocked. A measureme
46、nt of torque shall verify values of 8 +- 6 inch pounds (0.9 f 0.68 N-m) for valve handle movement out of detent and not in excess of 15 inch pounds (1.7 N-m) for handle movement between detented positions. 4.6.5 Ekssure-.dmp&st. To determine conformance to 3.4.2, with handle in open position, pressu
47、re is applied to one port to obtain a flow of 5 gpm (18.9 L/min) at the other port. A measurement of the pressure differential between ports shall verify the pressure drop shall not exceed 750 psi (5.16 MPa). At operational environmental extremes pressure drop shall be verified at 1500 psi (10.3 MPa
48、) maximum. 4.6.6 Extemal leakagekst. To determine conformance to 3.4.3, visual examination of the assembly shall verify no external leakage during conformance verification. 4.6.7 Intenialleakagetesi. To determine conformance to 3.4.4, with handle of valve in closed position, a pressure of 3000 psig
49、(20.6 MPa) shall be applied to port 1 at a rate of 380 f 20 psig (2.6 f .14 MPa) per second for a 2-minute period. Internal leakage in port 2 shall be verified at 0.003 in3 (0.05 cm3) maximum for a 1-minute period. Internal leakage at port 2 shall be verified not to exceed 0.006 in3 (O. 1 cm3) per minute subsequent to endurance test (see 4.6.11). 8 Provided by IHSNot for ResaleNo reproduction or networking permitt
