1、- I MIL-M-q5b28E 12 9979906 0308263 T MIL-M-45628E (MU) 31 July 1972 SUPERSEDING MIL-M-45628D (MU) 1 September 1971 MILITARY SPECIFICATION MOUNT, PERISCOPE: MI15 1. SCOPE 1.1 This specification covers one type of instrument designated Mount, Periscope: Ml.15. 2. APPLICABLE DOCUMENTS . 2.1 The follow
2、ing documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this spec- ification to the extent specified herein. SPECIFICATIONS Mi lit ary MIL-F-13926 Fire Control Materiel, General Specification Governing the Manufacture and Inspection of Materiel, P
3、ackaging of and Maintenance of MIL-P-14232 Parts, Equipment and Tools for Ordnance MIL-1-45607 Inspection Equipment, Acquisition, Disposition STANDARDS Military MIL-STD-105 Sampling Procedures and Tables: For MIL-STD-109 Inspection by Attributes Quality Assurance Terms and Definitions DRAWINGS U.S.
4、Army, Frankford Arsenal F8620000 Mount, Periscope: M115 F8636535 Adapter A8644448 Push-Pull Gage F105546 60 Holding Fixture FI1728871 F11728872 Test Standard for Mount, Periscope: M115 Set-up Fina Test Fixture for MountPeriscope: M115 FSC 1240 Provided by IHSNot for ResaleNo reproduction or networki
5、ng permitted without license from IHS-,-,-MIL-M-45b2E 12 m 9979706 0308269 1 m MIL-M-45628E (MU) PACKAGING DATA SHEET 8620000 Packaging of Mount , Periscope: M115 (Copies of specifications, standards, drawings and publications required by the suppliers in connection with specific procurement functio
6、ns should be obtained from the procuring activity or as directed by the contracting officer. ) 3, REQUIREMENTS 3.1 Materials.- Materials shall be in accordance with drawings, material specifications, and general specifications forming a part of this specification. 3.2 Fabrication.- The mount shall b
7、e manufactured in accordance with Drawing F8620000, “Mount, Periscope: M115“ and all drawings pertaining thereto. 3.3 General specification.- The contractor shall be responsible for adhererice to, and compliance with the following requirements of MIL-F- 13926: a. Order of precedence b. Dimensions an
8、d tolerances C. Inorganic protective surface finishes d. Part identification and marking e, Workmanship 3.4 Environmental. 3.4.1 Vibration.- The mount shall be vibrated in a vertical plane at a constant frequency of 30 cycles per second (CPS) with an amplitude f 1/16 inch (1/8 inch total excursion)
9、for a period of 5 minutes, plus or minus 15 seconds. evidence of loose parts or failure to operate. shall not have changed position from its original settings and the mount shall meet all other requirements of this specification. Subsequent to vibration the mount shall show no The headrest assembly
10、3.4.2 Extreme operating temperatures.- The mount shall meet all the operability requirements of 3.6.1, 3.6.2, 3.6.3 and 3.6.4 while exposed and thermally stabalized at -40 and +150F. 3.5 Orientation.- The mount shall include the shield, cover and The locating surface of the mounting flange of the he
11、adrest assembly. mount shall be secured in a horizontal plane as shown on Assembly Drawing F8620000. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-45628E (MU) 3.6 Performance. 3.6.1 Shield assembly.- With the plunger depressed (disengaged),
12、 maximum operation of the handle shall operate the shield through full operation; open for viewing and closed for protection. fully open and when the shield is fully closed the plunger shall engage and lock the handle when the plunger is released. When the shield is 3.6.2 llolding features.- A mediu
13、m which incorporates the critical mounting surfaces of a Periscope M31 shall be utilized for insertion and removal on the mount to determine the following functional requirements. 3.6.2.1 Release grip.- When the medium is inserted into the periscope mount, the mount shall automatically latch the med
14、ium in the fully inserted position so that it cannot be removed without actuating the release grip. When applying an upward force of 15 to 20 pounds on the medium, a direct pull of not more than 12 pounds on the release grip shall actuate the grip to its full disengaged position. Full disengagement
15、of the grip shall allow removal of the medium from the periscope mount with- out restrictions. The recorded pull on the grip shall not change by more than 3 pounds when the mount is subjected to the temperatures specified in 3.4.2. 3.6.2.2 Lever.- When the plunger of the Level Assembly 8298434 is de
16、pressed and the lever pushed to its fullest forward position and locked by releasing the plunger, the medium shall be secured in the mount. Sub- sequent to the application of a 10 pound pressure applied horizontally to the front and rear of the medium at its lowest point, the medium shall be within
17、.O005 inch of its original location when measured horizontally at that point. This requirement shall be met following the release of each of the pressures applied. 3.6.3 Headrest travel. 3.6.3.1 Headrest, horizontal travel.- Plunger 8262113 shall engage in the detent at each end of the slide and fir
18、mly secure the headrest in each position. When the plunger is freed from the detent, the head- rest shall slide smoothly without interference when pushed right and left between the detent positions. 3.6,3.2 Headrest, rotational travel.- The headrest assembly shall provide full movement without inter
19、ference when rotated through the maximum travel range permitted by Bracket 8229065, and shall not move when left in any position within the rotational travel range. 3.6.4 Adjustment range.- Each Screw Assembly B7639274 shall be loosened and the headrest assembly shall be adjustable through maximum m
20、ovement permitted by the elongated slots in the assembly without restriction or force. r; 3 * Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-45628E (MU) 3.6.5 Retention.- The torsional load applied to each bolt and wingnut that retains the hea
21、drest shall be such that the headrest shall not change position when subjected to the vibration specified in 3.4.1 and shall be operable at the temperatures specified in 3.4.2. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purchase
22、order, the supplier is responsible for the per- formance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any other facilities suitable for the performance of the inspection require- ments specified herein, unless disap
23、proved by the Government. Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and service conform to prescribed requirements. The 4.1.1 General provisions.- The component and subassembly inspect
24、ion requirements of MiL-F-13926 form a part of the quality assurance provisions of this specification. in MIL-STD-109 Definition of inspection terms shall be as listed 4.2 First article (initial production! approval.- The requirement for first article approval and the responsibility (Government or c
25、ontractor) for first article testing shall be as specified in the contract. sample for first article approval tests shall consist of three (3) mounts plus three (3) each of all itens covered by SQAP. manufactured in the same manner, using the same materials, equipment, processes, and procedures as u
26、sed in regular production. materials, including packaging and packing, shall be obtained from the same source of supply as used in regular production. The The sample shall be All parts and 4.2.1 Government testing.- When the Government is responsible for conducting first article approval tests, the
27、ccstractor, prior to submitting the sample to the Government, shall inspect the sample to insure that it conforms to dl the requirements of the contract and submit a record of this inspection with the sample, including certificates of conformance for materials. 4.2.2 Contractor testinK.- When the co
28、ntractor is responsible for conducting first article approval tests, the sample shall be inspected by the contractor for all the requirements of the contract. record of this inspection, including certificates of conformance for materials, shall be submitted to the Government for approval. ment reser
29、ves the right to witness the contractors inspection. The sample and a The Govern- 4.3 Inspection provis ions. 4.3.1 Submission of product.- Unless otheryise specified by the 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-fl-45628E 12 0b 03082
30、67 7 W - - MlL-M-45628E (MU) contracting officer, inspection lot size, lot formation and presentation of lots shall be in accordance with “Submission of Product“ provisions Of MIL-STD-105 4.3.2 Examination and tests. 4.3.2.1 Components and subassemblies.- All components and sub- assemblies shall be
31、inspected in accordance with the inspection provisions contained in Supplementary Quality Assurance Provisions (SQAP) listed in the technical data package (TDP). Quality Assurance Provisions of MIL-F-13926 shall apply. Examination and tests related to Section 3 herein shall be performed on a single
32、defect (individual characteristic) basis in accordance with MIL-STD-105 and the sampling plans specified in Tables I, II and III herein. tests for packaging, packing and marking shall be in accordance with MIL-P-14232 and Section 5 herein. The tabulated classification of defects in Tables I, II and
33、III shall constitute the minimum inspection to be performed by the supplier after first article approval and prior to Government acceptance or rejection by item or lot. In the absence of SQAPs, the applicable Examination and TABLE: I - CLASSIFICATION OF DEFECTS Class Critical: None Major: AQL 1.0% D
34、efective 101. Vibration Requirement 3.4.1 102. Retention 3.6.5 103. Shield assembly 3.6.1 104. Release grip 3.6.2,l 105. Lever 3.6.2.2 106. Headrest, horizontal travel 3.6.3.1 107. Headrest, rotational travel 3.6.3.2 108. Adjustment range 3.6.4 Test Procedure 4.6.1.1 4.6.1.1.1 4.6.3.1 4.6.3.2 4.6.3.
35、3 4.6.3.4 4.6.3.5 4.6,3.6 Minor: None - NOTE: The tests in Table I shall be conducted at a temperature between 4-60 and 4-90F. 4.3.3 Acceptance and rejection.- Rejected lots shall be screened for all defective characteristics. Removal or correction of defective units and resubmittance of rejected lo
36、ts shall be in accordance with “Acceptance and Rejection“ as specified in MIZ-STD-105. 4.4 Special samplinq. 4.4.1 General.- One mount shall be selected at random by a govern- ment representative as a special sample from each 100 produced, or from each months production, whichever occurs first. The
37、sample shall have Z- 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I I MIL-M-45628E (MU) successfully met all acceptance tests specified herein prior to conducting the following examinations and tests. TABLE II - No. Characteristic 301. Materials
38、 302 . Fabrication 303. General specifications Requirement Test Procedure 3.1 Drawings 7639274 shall be hand-tightened; Plunger 8262113 shall be engaged in the detent at the right end of the slide; the shield shall be raised and the handle assembly set in the upper detent. be placed on the headrest
39、assembly, bracket and plate assembly, etc, for the purpose of detecting any change in position of the headrest due to vibration. in 3.4.1. Immediately following the vibration cycle, and prior to the examination for physical defects resulting from poor workmanship and materials, the mount shall be su
40、bjected to the test in 4.6.1.1.1. Sub- sequent to the test io 4.6.1.1.1, the mount shall be thoroughly examined for physical defects resulting from poor workmanship and materials to determine compliance with 3.4.1 prior to being subjected to the remaining tests specified herein. A visual examination
41、 shall be made for missing or damaged parts prior to subjecting the mount to the remaining pe.- formance tests. Minimum visual examination shall include the shield assembly, the mount, the plate assembly, headrest assembly, nuts, etc. A tactile examination shall also be conducted to determine loosen
42、ess or improper functioning of the above ite; as well as such moving parts each Screw Assembly Temporary reference marks shall The mount shall then be vibrated for the time period specified 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-4562
43、8E (MU) as the latching mechanism, handle assembly, headrest asseuibly and lever assembly, etc. Any of the possible defects defined above shall be cause to consider a mount defective. examination shall be subjected to all other tests of this specification. 4.6.1.1.1 Retention.- immediately following
44、 vibration, the shield and the temporary reference marks shall be subjected to a visual examination. The shield shall not have closed and the temporary reference marks shall indicate no movement or change in position of the headrest due to vibration. utilized in this test shall be in accordance with
45、 the “Test Facilities“ requirements of MIL-F-13926 and the conditions of 3.4.2. be placed in the chamber and the temperature lowered gradually until the chamber temperature is -40F. for a period of two hours. the mount shall then be subjected to the tests specified in 4.6.3. completion of these test
46、s the mount shall be returned to standard ambient temperature and it shall be visually examined for any failures in workman- ship or materials. and the temperature gradually increased until the chamber temperature is 150F. At the end of this period and while still at the specified higher temperature
47、 the mount shall be subjected to the tests specified in 4.6.3. When the above tests have been completed the mount shall be returned to standard ambient temperature and once again visually examined for any failures in workmanship or material. Mounts which have passed the above 4.6.1,2 Extreme operati
48、n9 temperatures.- The testing equipment The mount shall The mount shall be kept at this temperature While still at the specified lower temperature Upon The mount shall again be placed in the test chamber The mount shall be kept at this temperature for a period of 2 hours. 4.6.2 Orientation.- Special
49、 test equipment conforming to the require- ments of Drawing F10554660 (Holding Fixture) shall be utilized to accept the mount, completely assembled, and secure it in the position required by 3.5. Set-up of the test equipment and installation of the mount under . test shall be performed in accordance with the applicable Set-up instructions cohtained on Drawing F11728872 (Set-up Final Test Fixture for Mount Peri- scope: M115). 4.6.3 Performanc
