1、MIL-PRF-6085E 8 December 2011 SUPERSEDING MIL-PRF-6085D 20 February 1998 PERFORMANCE SPECIFICATION LUBRICATING OIL, INSTRUMENT, AIRCRAFT, LOW VOLATILITY AMSC N/A FSC 9150 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. METRIC Comments, suggestions, or questions on t
2、his document should be addressed to AFPA/PTPT, 2430 C Street, Bldg 70, Area B, Wright-Patterson AFB OH 45433-7632 or e-mailed to AFPET.AFTTwpafb.af.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/as
3、sist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6085E 2 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope1.2 . This specification covers one grade of air
4、craft instrument lubricating oil only (see 6.1). The lubricating oil is identified by military symbol OAI and NATO Code No. 0-147 (see 6.5). Part or identifying number (PINM6085 - X ). The PIN to be used for lubricating oil acquired to this specification is created as follows: Container Size 1 = 1.5
5、 oz. 2 = 4 oz. 3 = 8 oz. 4 = 1 quart 5 = 5 gallon 2 APPLICABLE DOCUMENTS 2.1 Genera2.2 l. 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 addition
6、al information or as examples. While every effort has been 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. Government documents2.
7、2.1 . Specifications, standards, and handbooksFEDERAL SPECIFICATIONS . The following specifications, 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. QQ-S-69
8、8 Steel, Sheet and Strip, Low Carbon DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-680 Degreasing Solvent (Copies of these documents are available online at https:/assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Bldg 4D, Philadelphia PA 19111-5094.) 2.3 Non-go
9、vernment publicationsASTM INTERNATIONAL . 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. ASTM A29/A29M Standard Specification for Steel Bars, Carbon and Al
10、loy, Hot-Wrought, General Requirements for (DoD Adopted) ASTM B36/B36M Standard Specification for Brass Plate, Sheet, Strip, And Rolled Bar (DoD Adopted) ASTM D91 Standard Test Method for Precipitation Number of Lubricating Oils (DoD Adopted) ASTM D92 Standard Test Method for Flash and Fire Points b
11、y Cleveland Open Cup Tester (DoD Adopted) ASTM D97 Standard Test Method for Pour Point of Petroleum Products (DoD Adopted) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6085E 3 ASTM D445 Standard Test Method for Kinematic Viscosity of Trans
12、parent and Opaque Liquids (and Calculation of Dynamic Viscosity) (DoD Adopted) ASTM D972 Standard Test Method for Evaporation Loss of Lubricating Greases and Oils (DoD Adopted) ASTM D974 Standard Test Method for Acid and Base Number by Color-Indicator Titration (DoD Adopted) ASTM D1500 Standard Test
13、 Method for ASTM Color of Petroleum Products (ASTM Color Scale) (DoD Adopted) ASTM D1748 Standard Test Method for Rust Protection by Metal Preservatives in the Humidity Cabinet (DoD Adopted) ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products (DoD Adopted) ASTM D4636
14、 Standard Test Method for Corrosiveness and Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants, and Other Highly Refined Oils (DoD Adopted) (Copies of these documents are available online at http:/www.astm.org or from ASTM International, 100 Barr Harbor Drive, West Conshohocke
15、n PA 19428-2959) 2.4 Order of precedence3. REQUIREMENTS . 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 this document, however, supersedes applicab
16、le laws and regulations unless a specific exemption has been obtained. 3.1 Qualification3.2 . The instrument oil furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products list before contract award (see 4.2 an
17、d 6.3). Materials3.3 . Aircraft instrument lubricating oil (low volatility) shall consist substantially of synthetic base oil and additive materials to impart oxidation stability and corrosion-protective properties. Certain esters of the dibasic organic acids containing six to ten carbon atoms are k
18、nown to be suitable for use but are not mandatory. The right is reserved to subject oils of new or unusual composition to such additional tests as are considered necessary to ensure serviceability of the material. Viscosity-temperature coefficient (VI) improvers or pour point depressants shall not b
19、e used. Properties. Products shall conform to the requirements as specified in Table I and 3.4 through 3.6 when tested as specified in Section 4. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6085E 4 TABLE I. Properties of the finished oilC
20、haracteristic . Value Viscosity in centistokes at 54C (min) at -54C (max) Pour point (max) Flash point (min) Precipitation number (max) Acid number 8 12,000 -57C 185C 0 report 3.4 3.4.1 Performance Corrosion and oxidation stability3.4.2 . When tested as specified in section 4 the change in weight of
21、 cadmium-plated steel, copper, steel aluminum alloy, and magnesium alloy, when subjected to the action of the oil for 168 hours at 121C +1C, shall be not greater than 0.2 mg per square cm of surface for each strip. There shall be no pitting, etching, or visible corrosion on the surface of any of the
22、 metals when viewed under magnification of 20 diameters. Slight discoloration of the surface of the copper will be permitted, but dark brown, gray or black stain shall be cause for rejection. Resistance to oxidation3.4.3 . When tested as specified in section 4, the oil shall not have changed more th
23、an +5 percent from the original viscosity in centistokes at 54.4C after the oxidation-corrosion test (see 4.4.2). The neutralization number increase shall be not greater than 0.5 after oxidation. There shall be no evidence of separation of insoluble materials or gumming of the oil. Low temperature s
24、tability3.4.4 . When tested as specified in section 4, there shall be no gelling or separation of solid or liquid phases in the oil after storage at a temperature at or below -54C for 72 hours. The presence of a dense cloud, which does not “settle out”, shall not be the cause for rejection. Evaporat
25、ion3.4.5 . When tested as specified in section 4, there shall be not more than 1.80 percent by weight evaporation loss after the oil has been subjected to the test conditions, at 120C +1C. Corrosivity3.5 . When subjected to the test specified in section 4, the test areas of the three discs shall sho
26、w no evidence of corrosion, pitting or other attack. The discs may show no more than three spots within the area covered by the clip. Color and appearance3.6 . When tested as specified in section 4, the oil shall be clear, transparent and uniform in appearance, and not darker than No. 5 Union Colori
27、meter of ASTM D1500. Protection of panels3.7 . When tested as specified in section 4, not more than one panel out of five panels shall fail after being covered with a film of lubricating oil for 100 hours. If more than one panel fails, the product shall be retested by repeating the same test with an
28、 additional ten panels. Not more than four panels shall fail out of the total 15 panels, (the five panels on the original test plus the ten panels on retest). Workmanship4. VERIFICATION . The oil shall be entirely homogeneous and free from lumps of undissolved additive, water, dirt, lint or sediment
29、. Prior to final packaging the oil shall be filtered through a 0.45 micrometer pore-size filter. 4.1 Classification of inspectionsa. Qualification inspection (see 4.2). . The inspection requirements specified herein are classified as follows: b. Periodic qualification re-evaluation (see 4.2.4). Prov
30、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6085E 5 c. Conformance inspection (see 4.3). 4.2 Qualification inspection4.2.1 . Qualification inspection shall consist of a review for approval of the submitted manufacturers test report and subjec
31、ting the qualification samples (see 4.2.1) to examination and testing for all the requirements of this specification. Qualification samples4.2.2 . The qualification sample(s) shall consist of 1 gallon finished oil. Qualification tests4.2.3 . Qualification sample(s) shall be subjected to all tests sp
32、ecified in 4.4, method of inspection. Retention of qualification4.2.4 Periodic qualification re-evaluation. The instrument oil shall pass a qualification re-evaluation of a one gallon sample taken from the first lot of oil processed under a contract or order after the product has passed the qualific
33、ation inspection, and at intervals as considered necessary to verify the consistency of production quality. . In order to retain qualification of a product approved for listing on the QPL, the manufacturer shall verify by certification to the qualifying activity that the manufacturers product compli
34、es with the requirements of this specification. The time of periodic verification by certification shall be in five-year intervals from the date of original qualification. The Government reserves the right to re-examine the qualified product whenever deemed necessary to determine that the product co
35、ntinues to meet any or all of the specification requirements. 4.3 Conformance inspection4.3.1 Sampling. Sampling shall be in accordance with ASTM D4057. . The conformance samples shall be labeled completely with information identifying the purposes of the sample, name of product, specification numbe
36、r, lot and batch number (packaged or bulk - see 6.7), date of sampling, and contract number. Quality conformance tests shall be as specified in table II. TABLE II. Quality conformance tests. Inspection Paragraph Requirement Test Corrosion and oxidation stability Low temperature stability Viscosity P
37、our point Flash point Precipitation number Evaporation Examination of filled containers Color 3.4.1, 3.4.2 3.4.3 3.3 3.3 3.3 3.3 3.4.4 5.1 3.5 4.4.2 4.4.2 4.4.2 4.4.2 4.4.2 4.4.2 4.4.2 4.4.3 4.4.2 4.4 4.4.1 Method of inspection Inspection4.4.2 . Inspection shall be in accordance with 4.4.3 of this s
38、pecification. Physiochemical values. The oil properties shall be determined in accordance with the applicable methods specified in table III and 4.4.1 through 4.4.3. Physical and chemical values specified in section 3 apply to the arithmetic average of the determinations made on the samples for thos
39、e values that fall within any stated repeatability or reproducibility limits of the applicable test method. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-6085E 6 TABLE III. Test methods for oil properties. CHARACTERISTIC ASTM TEST METHODS C
40、orrosion and oxidation stability D4636 Pour point 1/D97 Flash point (open cup method) D92 Precipitation number D91 Viscosity (kinematic) D445 Color D1500 Evaporation loss of lubricating greases and oils D972 Acid number D974 Note: 1/ Test shall be run for 168 hours at 121oC. Use hexane, heptane, and
41、/or acetone to clean coupons. Use Alternate Procedure 2. 4.4.3 Examination of filled container4.4.4 . Each sample of the filled unit container and the shipping container shall be examined for evidence of leakage and net content, and examined for construction defects in the container and closure. Any
42、 container in the sample that is under the required fill, or has one or more defects shall be rejected. Rejected lots may be resubmitted for acceptance inspection provided that the contractor has removed or repaired all nonconforming containers. 4.4.4.1 Protection test Preparation of panelsa. Cut fi
43、ve panels from steel that conforms to QQ-S-698. . The following procedures shall be conducted: b. Size the panels and locate the holes as shown in figure A7 of ASTM D 1748. Remove all burrs, sharp edges and corners, including the edges of the holes. c. Highly polish the panel with No. 3/0 emery pape
44、r prior to use. Next wash and clean the panel in a solvent conforming to MIL-PRF-680, type 1. Then drain thoroughly and agitate in boiling 95-percent methanol. d. After cleansing, cool the panels in a desiccator. Care must be taken during cleaning and preparation to ensure that the surfaces are not
45、contaminated by fingerprints. Handle the panels only with tongs during the cleaning operation and only with hooks during and after dipping. 4.4.4.2 Procedurea. Dip five panels in a suitable sample of lubricating oil which is maintained at 25C +2C, remove and allow to drain for 2 hours at that temper
46、ature from glass, monel or stainless steel supports. . These steps shall be conducted: b. At the end of this period, suspend the panels in a humidity cabinet conforming to ASTM D 1748 for a period of 100 hours, and in such a manner that the drippage from the supports will not fall onto the panels. M
47、aintain the humidity within the cabinet at 100 percent relative humidity and at a dry bulb temperature of 49C +2C for a 100-hour exposure period. c. Remove the panels from the cabinet, clean them with naphtha and examine them. Panels have failed the protection test if at the end of the test period o
48、ne of the following conditions exists in the significant areas of the panels as defined by ASTM D1748, figure A1.8, considering both sides of the panel: (1) A corroded area of 2-mm diameter or larger Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
49、L-PRF-6085E 7 (2) Two or more spots of corrosion between 1 and 2 mm maximum diameter. d. If more than one panel in five fails the protection test as defined above, a retest will be permitted. Retests shall consist of repeating the protection test using ten additional panels. Reject the lubricating oil if more than four
