DLA A-A-59137 A-2010 LUBRICATING OIL BREECH BLOCK (FOR NAVAL ORDNANCE).pdf
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1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or Defense Logistics Agency Aviation VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact information can change, you m
2、ay want to verify the currency of this address information using the ASSIST database at https:/assist.daps.dla.mil/. FSC 9150 NOT MEASUREMENT SENSITIVE A-A-59137A 7 December 2010 SUPERSEDING A-A-59137 30 January 1998 COMMERCIAL ITEM DESCRIPTION LUBRICATING OIL, BREECH BLOCK (FOR NAVAL ORDNANCE) The
3、General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial item description (CID) covers two grades of lubricating oil that are intended for use as a lubricant in breech block guns for naval ordnance. 2. CLASSIFICATI
4、ON. The breech block lubricating oil shall be classified by the following grades, as specified (see (7.3(b): Grade A - For summer use Grade B - For winter use 3. SALIENT CHARACTERISTICS 3.1 Composition. The breech block lubricating oil shall consist of castor oil according to the properties of casto
5、r oil as specified in table I, and mineral oil according to ASTM D4304, “Standard Specification for Mineral Lubricating Oil Used in Steam or Gas Turbines“, (using type II mineral oil and ISO viscosity grade 68). Grade A breech block lubricating oil shall consist of five parts of mineral oil to two p
6、arts of castor oil. Grade B breech block lubricating oil shall consist of 10 parts of mineral oil to 1 part of castor oil. Verification of the existence of castor oil and the percentage of castor oil in the breech block lubricating oil shall be performed using test methods such as acetyl value and s
7、aponification determination (using ASTM D94, “Standard Test Methods for Saponification Number of Petroleum Products“) or more current and technically advanced commercial test methods such as the infra-red quantitative test method. Provided by IHSNot for ResaleNo reproduction or networking permitted
8、without license from IHS-,-,-A-A-59137A 2 TABLE I. Properties of castor oil. Property Requirement Test method Acid value, max 2.0 AOCS Cd 3d-63 Clarity Clear Visual Color (Gardner), max 3 AOCS Td 1a-64 Hydroxyl value 160 to 168 AOCS Cd 13-60 Loss on heating, max, % 0.25 AOCS Ca 2c-25 Refractive inde
9、x, 25 C 1.4764 to 1.4778 AOCS Cc 7-25 Saponification value 176 to 184 AOCS Cd 3-25 Solubility in alcohol1Complete - Specific gravity, 25/25 C 0.957 to 0.961 AOCS Cc 10c-95 Unsaponifiable, max, % 0.7 AOCS Ca 6a-40 Viscosity, St 6.3 to 8.9 AOCS Tq 1a-64 Iodine value 83 to 88 AOCS Cd 1d-92 Ricinoleic a
10、cid, min, % 85 ISO 5508, ISO 5509 1Castor oil shall be completely soluble without turbidity at 68 F (20 C) in two volumes of specifically denatured alcohol (95%) conforming to Formula No. 3-A of the U.S. Bureau of Alcohol, Tobacco Products, and Firearms in accordance with 27 CFR 21.35. 3.2 Viscosity
11、. The breech block lubricating oil shall have a viscosity range of 50 to 60 saybolt universal seconds (SUS) at 210 F (99 C) for grade A, and 45 to 55 SUS at 210 F (99 C) for grade B, when tested in accordance with ASTM D445, “Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liq
12、uids (and Calculation of Dynamic Viscosity)“, and converted to SUS by ASTM D2161, “Standard Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity“. 3.3 Pour point. The breech block lubricating oil shall have a maximum pour point of 50 F (10 C) fo
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