1、._ Y - MIL-V-5402 33 W 7777706 0364834 4 MIL-V-85402( AS) 14 November 1980 MILITARY SPECIFICATION VALVE, AIR, DUAL, PYROTECHNIC-ACTUATED FZU-43/B This specification is approved for use by Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of t
2、he Department of Defense, 1. SCOPE. 1.1 SCO e. This specification establishes the requirements for manu- facture %- an acceptance of the FZU-43/B Pyrotechnic- Actuated Dual Air Valve, referred to herein as the valve. 2. APPLICABLE DOCUMENTS. 2.1 Issues of documents. The following documents of the is
3、sue in effect on date of invitation for bids or request for proposal form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL- S -22473 Sealing, Locking and Retaining Com- pounds, Single-Component . MIL-C-45662 Calibration System Requirements. 1 Beneficial commen
4、ts (recommendations I additions, deletions) 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) I Code 93, Lakehurst, N J 98733, by using the self -a
5、ddressed Standardization Document Improve- ment Proposal (DD Form 1426) appearing at the end of this document or bv letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-85402 (AS) STANDARDS FEDERAL : I FED- STD-102 Preservation I Packaging I
6、 and Packing 1 MILITARY MIL-STD-105 Levels. _- Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-129 Marking for Shipment and Storage. I I I MIL- STD-167-1 MIL-STD-202 MIL- STD-331 MIL- STD-810 MIL-STD-1246 MIL- STD-1695 DRAWINGS Mechanical Vibrations of Shipboard Equipment (Type
7、I - Environmental and Type II - Internally Excited). Test Methods for Electronic and Electrical Component Parts. Naval Air Systems Command (Code Ident 30003) Fuze and Fuze Components, Environ- mental and Performance Tests for. Environmental Test Methods. Product Cleanliness Levels and Contamination
8、Control Program. Environments I Working I Minimum Standards for. DL 1186AS150 Valve Air, Dual I Pyrotechnic-Actuated , FZU-43/B Data List. (Copies of specifications, standards I drawings and publications re- quired by contractors in connection with specified procurement functions should be obtained
9、from the procuring activity or as directed by the contracting officer. ) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-85402( AS 1 2.2 Other publications. The following document forms a part of this specification to the extent specified her
10、ein. Unless otherwise indicated , 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 I W
11、ashington, D. C. 20402. ) 3. REQUIREMENTS. NOTE: Drawings referenced herein are listed on the DL cited in Section 2. 3.1 Item description. The valve is a pyrotechnic-actuated device con- sisting of a housing, piston assembly, initiator adapter, and a shear pin. -The valve mounts on the aft end of th
12、e missile warhead assembly and is connected to the fuze by two flexible pneumatic lines. combine to prevent detonation of the loaded warhead until certain prereq- uisite events have occurred after missile launch. At the required time, electrical power is supplied to fire an initiator which moves the
13、 piston to the stroked or valved position. This movement shears the shear pin and the four air manifold tips, thereby breaking the fuze seal and opening the missile air data system to the fuze for the pneumatic input required to arm the fuze. The major components and the general configuration of the
14、 valve are shown on Figure 1. 3.1.1 Government-furnished property. The Government will furnish the independent test facility specified in the contract or purchase order with electric initiators (7622843-3 , General Dynamics) in a quantity suffi- cient to perform the applicable tests specified herein
15、 (see 6.2.1). The valve and fuze 3.2 Characteristics. . 3.2.1 Performance. 3.2.1.1 Valve firing. The valve shall fire upon application of 5.1 k.1 amperes direct current (Adc) for 50 +,5 milliseconds (ms) to the electric initiator (see 3.1. I). Upon electric initiator firing , the piston (Draw- ing 1
16、186AS153) shall shear the shear pin (Drawing 1186AS114) and the four air manifold tips (Drawings 1186AS175 and 1186AS302), and shall wedge in the housing (Drawing 1186AS152). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-v-85402 33 7777706 03
17、611837 T I MIL-V-85402( AS) 3.2.1.2 Leak rate. With an input air pressure equal to 2.17 IO.04 pounds per square inch gage (psig) (60 il inches of water), the differ- ential air pressure leak in each air passage (total and static) shall not exceed 4 inches of water during a period of 30 I2 seconds. r
18、eservoir exhausted through each air passage (total and static) to ambient pressure, each air passage shall allow a flow rate of 250 cubic centimeters per second (cm3/s) minimum of air at standard temperature and pressure (STP) 3.2.1.3 Flow rate. With a 1.19 20.04 psig (33 +1 inches of water) 3.2.1.4
19、 Visual. The shear pin shall show no evidence of bending or * fracturing afterexposure of the valve to the environmental conditions of 3.2.2 and prior to valve firing. or defects which could affect operability (see 6.3.2). The valve shall have no obvious damage 3.2.1.5 Electrical. 3.2.1.5.1 Insulati
20、on resistance. The bridgewire circuit resistance to the case or housing shall be 100 megohms (Mohms) minimum when 500 volts direct current (Vdc) +lo percent is applied across the shorted connector pins and the case or housing for 10 +2, -0 seconds at 70 i20 degrees Fahr- enheit (OF). shall be 1.1 50
21、.2 o bridgewire for 1 minute maximum at 70 +20F. 3.2.2 Environmental conditions. The valve shall not be damaged nor shall safety or subsequent performance be degraded by exposure to the following environments. 3.2.2.1 Transportation vibration-temperature. The valve shall meet the requirements of MIL
22、-STD-331, Test 119, Procedure 2, and shall be safe (see 6.3.1) and operable (see 6.3.2) following exposure to the environment of 4.4.7.1. 3.2.2 2 Shipboard vibration. The valve shall meet the requirements of MIL-STD-167-1, Type I, and shall be safe (see 6.3.1) and operable (see 6.3.2) following expo
23、sure to the environment of 4.4.7.2. 3.2.2.3 Launch shock. The valve shall meet the requirements of MIL-STD-202, Method 213, Test Condition A, and shall be safe (see 6.3.1) and operable (see 6.3.2) following exposure to the environ- ment of 4.4.7.3. 3.2.2.4 Flight vibration (boost phase). The valve s
24、hall meet the requirements of MIL-STD-810, Method 514, Procedure V, Part 1 (Curve P) and Part 2 (Curve AE), and shall be safe (see 6.3.1) and operable (see 6.3.2) following exposure to the environment of 4.4.7.4. 3.2.1.5.2 Brid ewire resistance. The resistance of each bridgewire + s when 0.10 ampere
25、 (A) maximum is applied to each 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-5402 13 777770b 03611838 L 3.2.2.5 Flight vibration (cruise phase). The valve shall meet the requirements of MIL-STD-810, Method 514, Procedure I, Part 1 (Curve J
26、), except vibration shall be applied for 30 minutes minimum along each of the three major axes. and operable (see 6.3.2) following exposure to the environment of 4.4.7.5. The valve shall be safe (see 6.3.1) 3.2.2.6 Flight vibration (terminal phase). The valve shall meet the requirements of MIL-STD-8
27、10, Method 514, Procedure I, Part 1 (Curve J), except vibration shall be applied for 20 minutes minimum along each of the three major axes. The valve shall remain operable (see 6.3.2) following exposure to the environment of 4.4.7.6. 3.2.3 Final visual. There shall be no evidence of external damage,
28、 such as cracks, dents, or other blemishes, which may interfere with functioning or fit of the valve at the next assembly. 3.3 First article (preproduction sample). Unless otherwise specified in the contract or purchase order, the contractor shall furnish a pre- production sample of 18 valves to the
29、 testing activity designated in the contract or purchase order for first article inspection and approval (see 4.1.2.1 and 6.2.1). The preproduction sample shall be manu- factured using the same methods , materials , processes , and procedures proposed for production. Any production prior to approval
30、 of the pre- production sample shall be at the risk of the contractor. 3.4 Construction. The construction of the valve shall meet the re- quirements specified herein and on the drawings and documents listed on DL 1186AS150. 3.4.1 Production drawings. The valve shall meet the requirements of and be m
31、anufactured and assembled in accordance with the drawings and documents listed on Di 1186AS150. 3.4.1.1 Interface. The valve mechanical interface shall be in accord- ance with the requirements of Drawing 1186AS151. 3.4.2 Test equipment calibration. When specified in the contract or purchase order, a
32、ll test equipment shall be calibrated and maintained in accordance with a plan meeting the requirements of MIL-C-45662 (see 4.3). The calibration plan shall be prepared in accordance with the data item description (DID) cited in 6.2.2 and shall be approved by the Govern- ment prior to use. 3.4.3 Tes
33、t plan and test procedures. When specified in the contract or purchase order, the contractor shall prepare a test plan and test procedures in accordance with the DID cited in 6.2.2. The test plan and test procedures shall be approved by the Government prior to use. 5 Provided by IHSNot for ResaleNo
34、reproduction or networking permitted without license from IHS-,-,-MIL-V-85402 13 W 979790b 0364819 3 MIL -17-85402 (AS) 3.4.4 Inspection record. When specified in the contract or purchase order, the contractor shall prepare an inspection record in accordance with the DID cited in 6.2.2 for each valv
35、e produced under a specified contract. The required test data shall be extracted from the inspection and acceptance records maintained by the contractor. i 3.4.5 ,Standards of manufacture. 3.4.5.1 Product cleanliness. Product cleanliness shall meet the re- quirements of MIL-STD-1246, Level 200. kind
36、 shall be used on any part of the valve after final cleaning of com- ponents, except as Specified on the drawings or herein. No oils or solid lubricants of any 3.4.5.2 Working environment. The working environment shall meet the minimum levels and requirements specified in MIL-STD-1695. 3.4.5.3 Workm
37、anshi . The valve shall be constructed and finished in a manner + at ensures compliance with the requirements specified on the drawings and herein. 4. QUALITY ASSURANCE PROVISIONS. . 4.1 Responsibility for inspection, Unless otherwise specified in the contract or purchase order, the, contractor is r
38、esponsible for the per- formance of all inspection requirements specified herein (see 6.2. l). Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless
39、disapproved by the Government (see 6 2.1). The Government reserves the right to perform or witness any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services confarm to prescribed requirements. 4.1.1 Classification of inspection
40、s. The inspection requirements speci- fied 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 preproduction sample of 18 valves (see 3.
41、3) shall be subjected to the inspections of Figure 2 in the sequence shown. The inspections below the dashed line of Figure 2 shall be performed at an independent facility designated in the contract or purchase order (see 6.2.1). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted
42、 without license from IHS-,-,-MIL-V-85402 13 m 7779706 03b4820 T MIL-V-85402 (AS) 4 1.2.1.1 -Preproduction sample acceptance and rejection criteria. Each valve of the preproduction sample shall meet the applicable performance requirements of Section 3 on the first and only trial. valve to meet all t
43、he requirements specified in the contract or purchase order, on the drawings, or herein shall cause rejection of the prepro- duction sample. The failure of any 4.2 Quality conformance inspections. 4.2.1 Ins ection lot. Unless otherwise specified in the contract or more than 150 valves (see 6.2.1). A
44、n inspection lot, as defined in MIL- STD-105 , shall consist of completed -valves , fabricated under the same conditions and offered for inspection at the same time. 4.2.2 Quality conformance inspection sequence. Nine valves shall be randomly sampled from the inspection lot in accordance with MIL-ST
45、D-105 and subjected to the inspections of Figure 2 in the sequence shown. The inspections below the dashed line of Figure 2 shall be performed at an independent facility designated in the contract or purchase order (see 6.2.1). results of the inspections below the dashed line of Figure 2. purchase -
46、g-, or er, an inspection lot shall consist of not less than 51 nor . The remainder of the lot shall be held in bond pending the . 4.2.3 Quality conformance acceptance and rejection criteria. Each valve of Tance re- quirements of Section 3 n the first and onlf bial. The failure of any valve to meet a
47、ll the requirements specified in the contract or purchase order, on the drawings, or herein shall cause rejection of the inspection lot. 4.3 Test equipment and conditions. 4.3.1 Standard test equipment. The contractor shall provide and maintain an adequate system of inspection and test equipment nec
48、essary to ensure that parts and products will meet the contract or purchase order , specification , and drawing requirements. Unless otherwise speci- fied herein, the magnitude of any error introduced by the test equipment being measured. formance of the inspections specified herein shall be calibra
49、ted and main- tained as specified in 3.4.2. . shall not exceed 10 percent of the allowable tolerance of the requirement All test equipment utilized by the contractor for per- 4.3.2 Special test equipment and circuits. When special test equipment and circuits, other than as specified herein, are devised or commercially- available equipment is employed , all test equipment, circuits , and methods shall meet the requirements of 4.3.1 and are subject to approval
