ARMY MIL-P-48698 (6)-1998 PROBE AND S&A ASSEMBLY TOW-2 E6《探针和S&A组件 TOW-2 E6》.pdf

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1、I INCH-POUND I MIL-P-48698 (AR) AMENDMENT 6 O1 SeDtember 1998 SUPERSEDING AMENDMENT 5 13 September 1996 MILITARY SPECIFICATION PROBE AND S Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-P-48698 (6) w 9999906 2076349 87T MIL-P-48698 (AR) AMENDMEN

2、T 6 PAGE 3 3.4, delete paragraph in its entirety and substitute the following paragraph: “3.4 Safety and arming device. The Safety and Arming device (S&A shall conform to all requirements of MIL-S-14799. The S&A shall be in the safe condition prior to the subsequent assembly of the probe. The red pl

3、ug shall be evident inside the base terminal board to indicate the piston actuator has not been fired. The rotor shaft shall be in the proper orientation (See Figure 9). The gap between the spring detent and the bottom of the G sensing leaf slot shall not exceed one (1) times the wire diameter of th

4、e spring detent (See Figure 9). equal to or exceeds two (2) times the wire diameter of the detent spring shall be classified as a “Critical“ defect. A gap greater than one(1) times the wire diameter but less than two (2)times The wire diameter of the detent spring shall be classified as a “Major“ de

5、fect. If any Safety and Arming Device fails the critical inspection or the major inspection, notify the Government technical agency within two (2) working days to determine the deposition of the device.“ A gap that is 3.6: Line 3: Delete is“. PAGE 4 3.17: Delete paragraph in its entirety and substit

6、ute with: “3.17 Open circuit test. The probe shall exhibit an open circuit resistance greater than or equal to 1.0 megohms across the tip switch and the ogive switch, and a circuit resistance of greater than or equal to 900k ohms but less than or equal to 30 megohms across the detonator switch in ei

7、ther the stowed or deployed position. Detonator resistance between 100 and 100k ohms shall be classified as “critical“ defect. Detonator resistance less than 100 ohms or greater than 100k ohms but less than 900k ohms shall be classified as “Major“ defect. Detonator resistance greater than 30 megohms

8、 shall be considered a “no test“. * 3.18: Delete paragraph in its entirety and substitute with: “3.18 Continuity circuit test. The probe shall exhibit a resistance less than or equal to 1.0 ohms for the tip ground circuit, base S&A actuator circuit, ogive switch ground circuit and ogive switch live

9、circuit in either the deployed or stowed position. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48b78 (6) 997990b 207bL50 57L MIL-P-48698 (AR) AMENDMENT 6 The stowed probe shall exhibit a resistance of less than or equal to 1.0 ohms for th

10、e tip actuator circuit. The tip piston actuator resistance shall be 0.59 to 1.03 ohms. Actuator resistance greater than 1.03 ohms shall be classified as “Critical“ defect. Actuator resistance less than 0.59 ohms shall be classified as Major“ defect. The base detonator circuit shall exhibit a resista

11、nce of 1OOk f 10k ohms.“ PAGE 5 3.19, Third line, delete specification “MIL-P-70661“ and substitute “paragraph 4.5.16“. 3.23, Workmanship: Delete paragraph in its entirety and substitute with the following: 3.23 Workmanship. 3.23.1 Metal parts. The TOW/E6 Probe and S&A Assembly and its components sh

12、all be fabricated and finished in a thorough, workmanlike manner and shall be free of burrs, chips, sharp edges, unblended radii, cracks, surface defects, dirt, grease, rust, corrosion products and other foreign matter. Wires shall not be damaged during or after assembly. Solder connections shall be

13、 in accordance with paragraph 3.20. The cleaning methods used shall not be injurious to any part nor shall parts be Contaminated by the cleaning agents. All the required marking shall be clearly legible. * 3.23.2 Plastic parts. Parts shall be free from blisters, cracks, foreign inclusions, scratches

14、, voids or any other surface or internal defect which may detrimentally affect serviceability or appearance, and shall be uniform in color and appearance. Parts may be inspected in the restrained condition. Small amounts of flash, knockout pin marks, gates, sinks and other slight imperfections which

15、 do not detrimentally affect serviceability of plastic molded parts need not be selected as inspection points.“ 3.24, Add new paragraph as. follows: “3.24 Process documentation. Concurrent with submission of the First Article Sample (see paragraph 4.31, the contractor shall submit a written descript

16、ion of the manufacturing process used for the Krytox lubrication of the wedge. The manufacturing process shall be reviewed by and must be acceptable to the Government. The contractors written plan of process and process controls shall be prepared in accordance with Data Item Description DI-P-1604 (T

17、ailored) (see 6.9) . 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48698 (AR) AMENDMENT 6 Proposed changes to the process, which produced the accepted First Article sample shall be submitted to the Government prior to actual implementation

18、of the change. A new First Article sample may be required for each proposed process change as determined by the Government.“ 3.25, Add the following new paragraph: “3.25 Leaf spring contact. The leaf spring contact tip in the safe position shall be inspected in accordance with 4.5.17.“ 3.26, Add the

19、 following new paragraph: “3.26 Mechanism assembly. The mechanism assembly shall have the shoulder washers and piston actuator spacer present. Inspection shall be performed in accordance with paragraph 4.4.2.61.“ PAGE 6 4.3.1, Add at end of paragraph as follows: “The First Article Sample shall be ma

20、nufactured using the same materials, equipment,. processes, and procedures as will be used in regular production. All parts and materials, including packing shall be the same as used in regular production and shall be obtained from the same source of supply. Sample or portion thereof, as Directed by

21、 the procuring agency shall also be submitted whenever there is a lapse in production for a period in excess of 90 days whenever a change occurs in manufacturing processes, materials used, drawings, specifications or source of supply, such as the significantly affect product uniformity or quality as

22、 determined by the Contracting Officer.“ A First Article 4.3.2, Line 4: Delete “byu“ and substitute “by“. PAGE 41 4.3.2.31, Major 114: Delete paragraph in its entirety. Major 115: Change paragraph to the following, “Height.of tab straight shear, (.O15 min.), (see Note 1) “. PAGE 42 4.4.2.31, Minor 2

23、08 : Delete “3.2“ and substitute “3.23“. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 I MIL-P-48698 (AR) AMENDMENT 6 PAGE 46 4.4.2.33, Major 124: Delete paragraph in its entirety. Major 125: Change paragraph to the following: straight shear, (

24、.O15 min) , (see Note 1) .If “Height of tab PAGE .50 4.4.2.35, Minor 211: Delete “3.2“ and substitute “3.23“. PAGE 53 4.4.2.37 , Minor 206: Delete “3.2“ and substitute “3.23“. PAGE 60 4.4.2.44, Delete Major 101 in its entirety. Add Major 106 as follows: Examination “Major or Test Requirement Paragra

25、ph AQL Paragraph Reference - 106 Presence of adhesive 100% 3.2 Visual/ (see Note 4 of gage“ drawing) PAGE 76 & 77 4.4.2.60: Next higher assembly: Delete “9398046“ and substitute “ 93 8 8 O 4 6“ . Delete Major 114 in its entirety. Delete Critical Defect 1 and substitute with the revised critical defe

26、ct inspections: 1 Modified M114 100% 3.2 4.5.1.2a/ S&A in safe 4.5.1.2b/ position 4.5.1.2 2 Tip detonator 100% 3.17 4.5.14/STME switch resistance 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48698 (AR) AMENDMENT 6 3 Tip actuator 100% circu

27、it resistance 3.18 4.5.15/STME“ Add Major 121 as follows: “CLASS EXAM/TEST Major 121 Presence of shorting screw 100% 3.2 4.5.1.2d“ * Add Major 122 as follows: “CLASS EXAM/TEST Ma or 122 presence of Silicone tubing 100% 3.2 Vi su a 1 “ Add the following special inspections: EXAM CATEGORY TEST REQD -

28、AQL PARA PARA REF/ INSP METHOD Special 10 Absence of adhesive 100% 3.2 Visual sealant (See Note 18 on Dwg. 1 20 Torque on screw - 2 100% 3.2 places (See Note 3 on Dwg. ) Gage 30 Depth of housing 100% 3.2 support screw (See Note 19 on Dwg.) Gage“ Delete Note 1 and substitute with the following: “1. I

29、n accordance with MIL-A-48078.“ 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 MIL-P-48698 (6) 9999906 2076154 137 MIL-P-48698 (AR) AMENDMENT 6 PAGE 77a 4.4.2.61, Add new paragraph as included. Major 101, delete “3.24“ under requirement paragrap

30、h and substitute with “3.26“. PAGE 77b 4.4.2.62, Add new paragraph as included. PAGE 79 Add the following note to the Lot Quality Confirmation Test: If only one defect occurs during the Breakaway Strength Test, Lot acceptance can be ranted the same defective unit shall be retested by the contractor

31、for the Breakaway Strength Requirement. only when the retest unit meets in full compliance with the test requirements. When retest unit fails to meet the test requirement: a. Physical Configuration Audit (PCA) on the defective unit shall be performed by the contractor to ensure configuration. b. Fai

32、lure analysis report on the defective unit shall be submitted to the Government for review and approval prior to the disposition of the lot.“ PAGE 82 4.5.1.2, Delete paragraph in its entirety and substitute with the following paragraph: “4.5.1.2 Quality conformance. a. Prior to the assembly of the m

33、odified M114 S&A into the probe, visually inspect the safety of the detent spring position as shown in Figure 10. b. The S&A shall be visually inspected immediately prior to packaging to insure that the rotor is in the safe position (detonator not pointing up). c. For lot quality conformation testin

34、g, the inert S&A shall be visually inspected prior to environmental testing and upon completion of the continuity circuit test to ensure that it . conforms to 3.4. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-48698 (6) m 9999906 2076355 0

35、73 m II rl Li O rl E w w X CB d 4 I -I -I h rl P E a, ri) ri) 4 E m -.-i c (d c U H CB W r3 p: O z O E-c H H z x B W v M “N (v MMM M . z c -4 cw Q, a Q, c O z c O -4 (o Ukk -.-i a, o ViEu omm am 3 au ku a,Llia aa, om c LI4 o a7u om c c -rl -FI v) a Fcw cw coo a -rl c (o c A LI 2 f k O O a Ici O a, u

36、 c a, a -i W 8 (77a) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 * I4 m w 2 f, m frl W H X I3 X WA z z 4 cri O rl I3 W W X (II 84 zz cw al3 ZU O u I3 (II w E-i lx O z O H ii H z A. X W dpdp O0 dpdpdp O00 O00 dl-l l-lrlrl 4J ma, ca rn cn LIC o -

37、4 ULI O m bl Ca, o a,.+ c 3cn o 4Jc -4 a, -4 RW l-l -4 c aa, a, o mrn LI mbl a, ? z a, a, (II Y LI a, LI pi o Ul tn W E-c O z 1 9 (77b) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-P-4db98 (6) 9999906 2076157 946 8 MIL-P-48698 (AR) AMENDMENT

38、6 d. The S&A shall be visually inspected prior to packaging to insure that the shorting screw is removed (see Figure 21.“ PAGE 84 4.5.7, Add to end of paragraph the following sentence: A record of actual deployment time for each probe shall be maintained for the lot quality confirmation testing (LQC

39、T).“ PAGE 88 4.5.10.2, Add the following new paragraph: c. Tip assembly Upon insertion of inert charge assembly (Dwg. 9399673), inner tip assembly (Dwg. 93996841, and crush ring (Dwg. 9399727), assemble the tip assembly (Dwg. 9399730) to the probe with 55 t 5 in-lbs torque and cure at ambient for 72

40、 hours minimum before commencing first article or lot quality confirmation testing.“ . Add Major 104 as follows: , “ Major 104 Rotor torsion 100% 3.4 5.18/Visual assembled.“ PAGE 90 4.5.14.2.a, After the first sentence add the following: “This test shall.be conducted prior to continuity circuit test

41、s described in 4.5.15 (Table V). The test circuit shall not exceed 40 microamperes.“ Second line, replace “2 milliampers“ with “40 microampers for live S&As, or 2 milliampers for inert S&As.“ Table IV, Delete in its entirety and substitute new Table IV as follows: “TABLE IV - Open circuit test TEST

42、FROM (+) TO (-1 RESISTANCE (ohm) - - - - 1. Tip detonator Red cable Inner tip 2 1.0 meg 2. Tip switch Inner tip Black cable 2 1.0 meg switch 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48b98 (b) 0b 203bL58 882 MIL-P-48698 (AR) AMENDMENT

43、6 3. Ogive switch Base contact ogive (or 2 1.0 meg rivet) The polarity for the tip detonator switch is reversible.“ 4.5.14, delete paragraph in its entirety and substitute with: “4.5.14 Open circuit tests. Test in accordance with Table IV. Due to the capacitive nature of the circuit, steady state sh

44、all be achieved before performing actual measurements. (ref. 3.17)“ PAGE 91 Table V, Delete in its entirety and substitute the new Table V as follows: “TABLE V - Continuity Tests“ . TEST FROM (+) TO (-1 RESISTANCE (ohm) . Tip ground circuit Outer tip Black cable - REJECT CONDITION REFERENCE Figure 8

45、- Acceptance criteria for leaf spring contact (side view) 14 (91b) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, SEE MIL-P-48698 (6) 9999906 2076362 203 MIL-P-48698 (AR Ai4ENMkX 6 DETAIL ROTOR SHAFT SLOT SPRING DETENT Gap between Spring Detent An

46、d bottom of *G nsensing Leaf slot must not exceed One (1) times th wire Diameter of the Spring Ostent “G -SENSIMG LEAF WARNING Should the SLA fail to be in the safe condition, an extreme safety hazard shall be considered to exist, and the warhead section disposed of in accordance with acceptabfe pro

47、cedures Figure 9. The safe condition of the E114 Safety and Arming Device 15 (Sic) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. Sathack Support Plata ( 9 231468 Euee Base Piston Rctuator See Note Spacer lble VimB - B Rotated 180 “Note Detent q?r

48、ing 49231513) shall contact the fuze base C9231418) between the piston actuator spacer hole and setback support plate (923146#), a8 shown. Eigure IO. Safety of the &tent spring position Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48698 (6) = 9997906 2076364 O6 MIL-P-Q8698(RB) RMBNDMBNT Q RDTB SPRNG End of spring sul be properly / installedas shown # ACCEPTABLE: CNITIN BOTQR SPRNG coils unevenly spgced Bend in coils shall be observed) coils cwniy spaced (No Bend in coi