1、- MIL-S-5354 13 W 777770b 03611551 7 W I MIL-S-85354(,AS) e 14 Novem ber 1 980 MILITARY SPECIFICATION SWITCH, INERTIA, FUZE This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of D
2、efense, 1. SCOPE. 1.1 SCO e. This specification establishes the requirements for manu- facture -% an acceptance of the Fuze Inertia Switch, referred to herein as the switch, 2. APPLICABLE DOCUMENTS. 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bid
3、s or request for proposal form a part of this specification to the extent specified herein. SPECIFICATIONS 0 MILITARY MIL-C-45662 Calibration System Requirements. STANDARDS FEDERAL FED- STD-102 Preservation, Packaging I and Packing Levels. Beneficial comments (recommendations, additions, deletions)
4、and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Engineering Specifications and Standards Department (ESSD) , Code 93, Lakehurst , N J 08733, by using the self-addressed Standardization Document Improvemen
5、t Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I_ - MIL-S-45354 13 W 7779706 0364552 O E MIL-S-85354( AS) MILITARY MIL-STD-105 MIL- STD - 129 MIL- STD-202 MIL-STD-810 Envi
6、ronmental Test Methods. MIL-STD-1246 . Product Cleanliness Levels and Contamination Control Program. MIL - STD - 1695 Environments, Working, Minimum Standards for. Sampling Procedures and Tables for Marking for Shipment and Storage. Test Methods for Electronic and Electrical Component Parts. : Inspe
7、ction by Attributes. DRAWINGS Naval Air Systems Command. (Code Ident 30003) DL 1186AS221 . Switch, Inertia, Fuze. Naval Sea Systems Comma (Code Ident 53711) LD 533577 LM 2186956 LM 2203492 DL 2205011 Test Set, Vibration. DL 2238186 Test Set, Inertia. Impact Test Fixture for Fuze Triggering Devices.
8、Fixture, vibration, for Fuze Trigger- ing Devices. Fixture, Vibration, for Fuze Trigger- fng Devices. (Copies of specifications, standards, publications, and drawings required by contractors in connection wi, be obtained from the procurrlG.g officer. ) fied procurement functions should or as directe
9、d by the contracting 2 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-85354 13 I 7777406 03h1.1553 2 I 2.2 Other publications. The following document forms a part of this specification to the extent specified herein. Unless otherwise indicat
10、ed , the issue in effect on date of invitation for bids or request for proposal shall apply. CODE OF FEDERAL REGULATIONS (CFR) 49 CFR 171-178 Transportation, (Application for copies should be addressed to the Superintendent of Documents , Government Printing Office , Washington , D. C. 20402. ) 3. R
11、EQUIREMENTS. NOTE : Drawings and associated documents (such as DLs, LMs, and LDs) referenced herein which are not listed in Section 2 are delineated on the DLs, LMs or LDs cited in Section 2, 3.1 Item description. The switch contains two vibration-dampened con- tacts which are designed to momentaril
12、y close at impact. The contacts are located within a housing that also serves as a portion of the switching common, or ground circuit. The switch must be specifically oriented with respect to the longitudinal centerline and direction of travel of the fuze or missile in which it is mounted. Upon impa
13、ct of the missile, a circuit for delivery of a firing pulse to initiate the explosive-train of the missile warhead is completed through closure of either one or both contacts of the switch. 3.2 Characteristics. 3.2.1 Performance. The performance characteristics of the switch shall be as specified he
14、rein when fabricated in accordance with the drawings and documents listed on DL 1186AS221. 3.2.1.1 Insulation resistance. The insulation resistance between the switch housing (Drawing 1186AS222) and both leads shorted together shall be 25 megohms (Mohms) minimum. 3.2.1.2 Impact. 3.2.1.2. I Impact ,
15、65-degree position. Neither contact of the switch shall close when subjected to a 65-degree impact in accordance with Figure 1. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- S-85354(AS) , . 3.2.1.2.2 Impact , 95-degree position. Both contact
16、s of the switch shall close when subjected io E! %-degree impact in accordance with Figure 1. 3.2.1.3 Acceleration. 3.2.1.3.1 Acceleration, 350 gravity units (9). Neither contact of the switch shall close at an acceleration of 350 +5, -0 g. 3.2.1.3.2 Acceleration, 450 9. at an acceleration of 450 +O
17、, -5 g. Both contacts of the switch shall close 3.2.2 Environmental conditions. The switch shall not be damaged nor shall performance be degraded by exposure to the following environments. 3.2.2.1 Sinusoidal vibration, Neither contact of the switch shall close during &le (see 6.3.1) following exposu
18、re to the env during and the switch shall to the environment of 4.4.4.2. 3.2.2.3 Thermal shock. lowing exposure to the environment of 4.4.4.3. 3.2.2.2 Random vibration. Neither contact of the switch shall close mahle (see 6.3.1) following exposure The switch shall be operable (see 6.3.1) fol- 3.2.3
19、Visual. There shalPhk no evidence of external damage, such as cracks, deFor other blemishs, which may interfere with functioning or fit of the switch at the next assembly. 3.3 First article (preproduction sample). Unless otherwise specified in the contract or purchase ordef, the contractor shall fur
20、nish a preproduc- tion sample of 50 switches to Qi testing activity designated in the contract or purchase order for first artide inspection and approval (see 4.1.2.1 and 6.2.1). The preproduction sample shall be manufactured using the same methods, materials , processes , and procedures proposed fo
21、r production. Any production prior to acceptance of the preproduction sample shall be at the risk of the contractor. 3.4 Construction. The construction of the switch shall meet the re- quirements specified herein and on the drawings and documents listed on DL 1186AS221. 3.4.1 Production drawings. Th
22、e switch shall meet the requirements of and be manufactured and assepbled in accordance with the drawings and documents listed on DL 138$%3221. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-5354 13 = 777770b 0364555 b W .- 3.4.2 Test equipm
23、ent calibration plan. , When specified in the contract or mrchase order. test euuii3ment shall be calibrated and maintained in accrdance with a -plan metig the. requirements of MIL-(2-45662. The calibration plan shall be prepared in accordance with the data item description (DID) cited in 6.2.2 and
24、shall be approved by the Govern- ment prior to use. 3.4.3 Test plan and test procedures. When specified in the contract or purchase order, the contractor shall prepare a test plan and test pro- cedures in accordance with the DID cited in 6.2.2. test procedures shall be approved by the Government pri
25、or to use. the contractor shall prepare an inspection record in accordance with the DID cited in 6.2.2 for each switch produced under a specified contract. The required test data shall be extracted from the inspection and accept- ance records maintained by the contractor. The test plan and 3.4.4 Ins
26、pection record When specified in the contract or purchase order, 3.4.5 Standards of manufacture. 3.4.5.2 Product cleanliness. Product cleanliness shall meet the require- ments of MIL-STD-1246, Level 200. No oils or solid lubricants of any kind shall be used on any part of the switch aftr final clean
27、ing of components, except as specified on the drawings or herein. 3.4.5.2 Working environment. The working environment shall meet the minimum levels and requirements specified in MIL-STD-1695. 0 . 3.4.6 Workmanship. The switch shall be constructed and finished in a manner that ensures conformance to
28、 the requirements specified on the draw- ings and herein. 4. QUALITY ASSURANCE PROVISIONS. 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the per- formance of all inspection requirements specified herein (see 6.2. l)
29、. Except as otherwise specified in the contract or purchase order, the con- tractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government (see 6.2.1). The Government reserves the right to per- form o
30、r witness any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 5 Y Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- S-85354(AS) 4.1.
31、1 Classification of inspections. The inspection requirements spec- ified herein are classified as follows: a. b . Preproduction sample inspections (see 4.1.2.1). Quality conformance inspections (see 4.2). 4.1.2 Special tests and examinations. 4.1.2.1 Preproduction sample inspections. The preproducti
32、on sample of 50 switches shall be subjected to the inspections of Figure 2. The failure of any switch to meet all the requirements specified in the con- tract or purchase order, on the drawings, or herein shall cause rejection of the preproduction sample. The inspections below the dashed line of Fig
33、ure 2 shall be performed at an independent facility designated in the contract or purchase order (see 6.2.1). 4.2 Quality conformance inspections. 4.2.1 Inspection lot. Unless otherwise specified in the contract or purchase order, an inspection lot shall contain not less than 151 nor more than 500 s
34、witches (see 6.2.1). An inspection lot, as defined in MIL-STD-105, shall consist of completed switches fabricated under the same conditions and offered for inspection at the same time 4.2.1.1 Serial numbers. Unless otherwise specified in the contract or purchase order, all switches shall be assigned
35、 a Government serial number in order of consecutive assembly (see 6.2.1). After assignment of a serial number to each switch, the inspection lot shall be formed and. identified by lot number. 4.2.2 Quality conformance inspection sequence. After the inspection lot has been formed and identified by nu
36、mber, the lot shall be subjected to the inspection sequence above the dashed line of Figure 3. switches shall then be randomly sampled from the inspection lot in accord- ance with MIL-STD-105 and subjected to the inspections below the dashed line of Figure 3 at an independent facility designated in
37、the contract or purchase order (see 6.2.1). The remainder of the lot shall be held in bond pending acceptance of the 50-switch sample. The 50-switch sample shall not be returned to the lot nor forwarded for service use, but shall be con- sidered destroyed and disposed of at the discretion of the con
38、tracting officer. Fifty 4.2.2.1 Quality conformance acceptance and rejection criteria. Defects in the switch are classified as MAJOR, as defined in MIL-STD-105, and are specified on the drawings. Quality conformance acceptance and rejection criteria shall be as follows: a. For the inspections above
39、the dashed line of Figure 3 where 100 percent inspection is required, rejection shall be on an individual basis. The failure of any switch to meet the re- quirements specified in the contract or purchase order, on the drawings, or herein shall cause rejection of the switch. 6 Provided by IHSNot for
40、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-85354 13 7979706 0364557 T O b. For the inspections below the dashed line of Figure 3 where random sampling is required, the inspection lot shall be rejected when the number of MAJOR defects found exceeds an acceptable
41、quality level (AQL) of 0.25 percent defective for switch closure during the random vibration test of 4.4.4.2, or an AQL of 1.0 per- cent defective for the tests of 4.4.1, 4.4.2, and 4.4.3. 4.3 InsDection conditions. 4.3.1 Inspection environment. Unless otherwise specified herein I the inspections of
42、 4.4 shall be performed under the conditions specified in 3.4.5.2. 4.3.2 Test equipment and inspection facilities. The contractor shall furnish all necessary test equipment, inspection facilities I and personnel necessary to perform the required acceptance tests. The test equipment shall be of suffi
43、cient accuracy and quality to permit satisfactory perform- ance of the required tests and examinations, and shall be calibrated as specified in 3.4.2. 4.3.3 Gages. The contractor shall provide whatever gages are neces- sary to ensure conformance with the dimensional requirements of this specificatio
44、n and the applicable drawings. When specified in the contract or purchase order, the procuring activity will furnish drawings of pertinent Guvernment final inspection gages (see 6.2.1). This procedure does not relieve the contractor of his responsibility for the design and manufacture of the gages r
45、equired for satisfactory fulfillment of the contract require- ments, but is intended to facilitate acceptance of all components and assem- blies by Government final acceptance gages, 4.4 Methods of inspection. 4.4.1 Insulation resistance. Test the switch in accordance with MIL- STD-202, Method 302,
46、Test Condition B. Connect the megohmmeter leads between the shorted lead wires of the switch and housing. Record the resistance. The insulation resistance shall conform to 3.2.1.1. 4.4.2 Impact. For the tests of 4.4.2.1 and 4.4.2.2, mount the switch on the impact test fixture (LD 533577) at the base
47、 of the mass in the posi- tion shown on Figure 1, so as to receive the impact in the forward direc- tion (see Drawing 1186AS221) along the longitudinal axis (see 6.3.2). Use the eight-channel inertia test set (DL 2238186) to individually monitor closure of both contacts. NOTE: the illumination of te
48、st lamps on the inertia test set (Drawing 2238186). Contact closure will be indicated by 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-5354 I3 O 77777Ob 03b455 I 0 4.4.2.1 Impact, 65-degree position. Raise the pendulum to the 65-degree posi
49、tion, as measured by the indicator wheel shown on Fig- ure 1. inertia test set to determine conformance to 3.2.1.2.1. Release the pendulum and observe the monitor lamps on th 4.4.2.2 Impact, 95-degree position Raise the pendulum to the 95-degree position, as measured by the indicator wheel shown on Fig- ure 1. Release the pendulum and observe the monitor lamps on the inertia test set to determine conformance to 3.2.1.2.2. 4.4.3
