NAVY MIL-N-21945 A-1973 NONMAGNETIC REQUIREMENTS FOR PARTS FOR MINES MARK 56 AND MARK 57《对MARK 56 和 MARK 57地雷部分无磁化要求》.pdf
《NAVY MIL-N-21945 A-1973 NONMAGNETIC REQUIREMENTS FOR PARTS FOR MINES MARK 56 AND MARK 57《对MARK 56 和 MARK 57地雷部分无磁化要求》.pdf》由会员分享,可在线阅读,更多相关《NAVY MIL-N-21945 A-1973 NONMAGNETIC REQUIREMENTS FOR PARTS FOR MINES MARK 56 AND MARK 57《对MARK 56 和 MARK 57地雷部分无磁化要求》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、Mi-N-21945A(OS) 21 February 1973 SUPERSEDING MIL-N-Z1945(Wep) 27 February 1959 MILITARY SPECIFICATION Nonmagnetic Requirements For Parts for Mines Mark 56 and Mark 57 1. SCOPE 1.1 This specification establishes the nonmagnetic requirements for procurement of parts (see 2.1) for the Mines Mark 56 and
2、 Mark 57. 2. APPLICABLE DOCUMENTS 2.1 The following standards, drawings and pub1 ications, or such portions thereof as desiqnated herein of the issue in effect on the date of invitation for bids, STANDARDS MILITARY MIL-STD-105 MIL-STD-481 DRAW I NGS NAVAL ORDNANCE SYSTEMS COMMAND Dwg. 1186570 Dwg. 1
3、186571 Dwg. 1191746 Dwg. 1246626 Dwg. 1274625 Dwg. 1299387 Dwg. 1378573 Dwg. 1379182 Dwg. 1386214 form a part of this specification. Sampling Procedures and Tables for Inspection by Attributes Configuration Control -Engineering Changes , Deviations and Waivers (Short Form) Ring Shackle stop Cover, L
4、oading Hole Strap Spacer Ring, Clamp Magnetometer Housing Mark 1 Mod O As sembl y Spacer Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-2 1945A(OS) Dwg. 1387843 Dwg. 1387988 Dwg. 1418167 Dwg. 1418168 Dwg. 1553572 Dwg. 1553573 Dwg. 1619172 Dwg.
5、 1620227 Dwg. 1620253 Dwg. 1620254 Dwg. 1620660 Dwg. 1634067 Dwg. 1634068 Dwg. 1635006 Dwg. 1700974 Dwg. 1700998 Dwg. 1738313 Dwg. 1738318 Dwg. 1825736 Dwg. 1826627 Dwg. 1826628 Dwg. 1826629 Dwg. 1826630 Dwg. 1827674 Dwg. 1827675 Dwg. 1827687 Dwg. 2155262 Dwg. 2280626 Dwg. 2289340 Dwg. 2420946 Dwg.
6、2422431 Dwg. 2422446 Dwg. 2423304 Dwg. 2426520 Dwg. 2491852 PUBLICATIONS NAVAL ORDNANCE SYSTEMS COMMAND OD 10511 Spacer Strap Spacer Spacer Shear Tube Cage We1 dment Nut Fuze Weight Weight Nut Nut , Hex , Machine Screw Washer, Flat Shear Tu be Loc kwas her Was her Cap, Screw, Socket Head Screw, Slot
7、ted, Pan Head Coupling Nut Screw, Slotted Pan Head Screw, Machine, Flat Head Retaining Ring, E Type Retaining Ring Nut, Hex, Self Locking Screw, Cap Bolt, Hex Head Spacer Spacer Spring Pin Filter, Radio Interference, Mark 4 Mod O Filter, Radio Interference, Mark 3 Mod O Capacitor, Fixed , Mylar-Diel
8、ectric Support Retainer Assembly Arming Wire Mark 5 Mod 1 Basic Methods for Nonmagnetic Testina with the Test Set Mark 115 Type (Copies of standards, drawings and pub1 ications required by contractors in connection with specific procurement functions should be obtained from the procuring agency or a
9、s directed by the contracting officer. ) 2 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ - flIL-N-239LiSA 33 W 9799706 0303837 3 W 3. REQU I REMENTS 3.1 Description. This specification lists those parts for the Mines Mark 56 and 57 which shall
10、be subjected to magnetic effects tests when procured separately. 3.2 General requirements . 3.2.1 Requests for deviation. Requests for deviation from this specification, applicable drawings, standards, pub ications, materials and processes specified herein, shall be as set forth in MIL-STD-481. 3.2.
11、2 Conflicting requirements. Conflicting requirements arising between this specification or any standard, pub1 ication or drawing listed herein shall be referred in writing to the procuring agency or appointed agent for interpretation and clarification. 3.3 3.3.1 Static magnetic effect. When tested i
12、n accordance Performance requirements and product characteristics, with 4.5.2, the static magnetic effect of the parts as tested shall not exceed 0.10 milligauss when measured as described in OD 10511. 4, QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in t
13、he contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements
14、specified herein, unless disapproved by the Government. The 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 services conform to prescribed requirements. 4.2 Classification of inspections
15、. The inspection and testing of the spare and special parts shall be classified as fol 1 ows : a. b. c. First article inspection (paragraph 4.5) Qual i ty conformance inspection (paragraph 4.5) Periodic production sample inspection (paragraph 4.5) 4.3 Inspection. 4.3.1 First article inspection-. The
16、 first article sample of the item being procured shall be tested by the contractor, or an , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-activity designated by the procuring agency, to determine that it meets the requirements of this specification
17、. 4.3.2 Quality conformance. 4.3.2.1 Sampling. Acceptance samples selected from the production lot for testing by the contractor or a Government-designated testing activity shall be randomly selected in accordance with MIL- STD-105, Inspection Level II, AQL 1.0 percent or as designated on the specif
18、ication or drawing for the particular part. In the event of a conflict between the AQL specified herein and the specification or drawing for the particular part, the specification or drawing shall have precedence. 4.3.2.2 100 percent inspection. Unless otherwise specified, inspection shall be perfor
19、med 100 percent only on those items where 100 percent inspection is required by the appi icable specification or drawing . 4.3.3 Periodic production sample test. When specified, a periodic production sample of the applicable item shall be randomly selected from the production lot for submission to a
20、n activity designated by the procuring agency to determine if the item meets the requirements of this specification. Nonperformance of this test by the contractor does not relieve the contractor from the responsibility of meeting the requirements of this specification. 4.4 Test equipment. The follow
21、ing item of test equipment is required to perform the test of 4.5: Test Set Mark 115 (Government furni shed) 4.5 Tests. 4.5.1 General test conditions and definitions. The general test conditions and definitions shall be as specified in OD 10511. 4.5.2 Test procedure. Static magnetic effect tests sha
22、ll be accomplished as specified in OD 10511, Test Method I. purpose of accomplishing the tests, the test distance and the rate of rotation shall be as specified in Table I or II for each category of parts to be tested. for large aluminum or copper parts, especially if these parts are cylindrical or
23、spherical , to prevent the production of magnetic eddy current effects. A smooth, continuous rotation is required for such parts; avoid abrupt motions. For the Note that the rate of rotation must be slow 4.5.2.1 Small parts. Small parts to be tested shall be arranged in a compact manner in a volume
24、whose base area shall not exceed 3 inches square and whose height shall not exceed 1-1/2 inches. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c MIL-N-21745A 13 - 7777706 030117 7 I The parts shall be secured in this volume to insure no relative mo
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- NAVYMILN21945A1973NONMAGNETICREQUIREMENTSFORPARTSFORMINESMARK56ANDMARK57 MARK56 MARK57 地雷 部分 磁化 要求 PDF

链接地址:http://www.mydoc123.com/p-980456.html