1、M IL-H-6118 17 Aprii 1950 MILITARY SPECIFICATION HOOKS; ARRESTING GEAR, CHROMIUM PLATING aF This specification wasapproved by the Departments of the Amy, the Navy,and the Air Force for um of the procurement services of the respective Depart- nients, and supersedes the following specification: 20 Feb
2、ruary 1942 NAVAW P-44-3a This specification consists of this cover sheet and NavAer Specification P-44-3, Copies of this specification may be obtained from the Commanding Officer, U. S. hen a request for this specification is received by a supplying activity it win dated 20 February 1942, without mo
3、dification. Naval Air Stat ion, Johsville , Pennsylvania. be necessary to attach this cmr sheet to the pertinent specification before issue, Custodian: Navy-BuAer Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-WlL-U-b8 P-44-.30 20 February 1942 Supe
4、rseding P443 13 December 1937 IUVY AERONAUTICAL SPECIFICATION PLATING, worull,. ON ARRESTING HOOKS k. APPLICABLE SPECIFICATIONS A-1, The following specifications of the issue in effect on date of invitation for bids shall form 3 part of this specification: A-la. Navy Department Specifications: -Gene
5、ral Specifications for inspection of Material 46-s.2 Plating Zinc A-U. Navy Aeronautical Specificatioas: p-44 Plating. Chromium General Spesifications For A-lc, Army-Navy Aeronautical Specifications: . AN- QQ-.P-L+S Plating . Cadmium AN-QQ-.M-181 Magnetographic nspection of Steel Parts B-1, The chro
6、mium plating on arresting hooks shall be of Type A as defined in Specification P-4. . C. hTERIAL AND WORKMANSHIP C-1. Material and workmanship shall be first class. D. GXNERAL REQJJFt3“TS D-1. The requirements of Specification P-44 apply to this speci- fication except that in case of disagreement th
7、e requirements of this apecificatIon shall govern. magnetic inspection after the polishing operation preceding chromium plating plating operations. D-2. Magnetic nspect1on.- Each hook shall be subjected to and after the embrittlement relief treatment following the -I- Provided by IHSNot for ResaleNo
8、 reproduction or networking permitted without license from IHS-,-,- MIL-H-6118 68 = 7799706 01111757 7 W P-44-3a - D-3. Preparation for Plating.- The arresting hook throat shall be D-4. pollshed before chromium plating. Chromium Plate.- Shall conform to the requirements for Type A deposit SFecif ica
9、tion P-44. D-4a. Extent of Plating.- The throat and areas adjecent thereto but not extending beyond two inches on the straight shaft shall be chromium plated. D-4b. Thicknuss of Plating.- The thickness of the chromium deposit on the throat of the hook shall not be less than 0.015 inch. D- 4c. Finish
10、. - D-4ctl). No polishing shall be done on the arresting hook throat after plating. b4c.12). When chromium is deposited on only a portion Of a Surface, the deposit shall blend smoothly with adjacent unplated areas, D-qc(3). hook throat shall be smooth and bright. deposit shall. be continuous and adh
11、erent. The chromium deoosit on the warking surface of the arresting On adjacent plated areas the chromiwr D-5. Plating of Shaft.- After chromium platiag of the arrestingnook, the unplated shaft to which it is attached shall be plated either with zadmium or mth zinc in accordance with Specifications
12、AN-QQ-P-421 or 46-P-2 respectively. D-6. Rnbrittlement Relief.- Each hook shall be baked for a period Of This treatment not less than three hours at a temperature of 325OF. f25OF. shall be performed after ail plating operations have been completed. D-7. Approval of Equipment.- A report shall be subm
13、itted to the Naval Aircraft Factory describing the pxess and equipeat which are to be used in plating the arresting hooks. unless such a report has been submitted in connection with a previous contract. E. DEiALL REQUIREMENTS E-1. Dimensions and the fact that the Government may have formulated fumri
14、shed I or In an opay supplied the said drawings specifications or other data is not to be regarded by impliCations or otherwise as in any manner licensing the holder or any othw person or corporation or permission to manufacture use or sell any patented invention that may in any way be related thereto. or conveying any. rights -3- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
