1、* * MIL-I-17244E (5) bb m 977990b Oq22727 4 9 MIL-I-l7244E(SHZ%) AMENDMENT 5 21 M 1985 SUPERSEDING AMENDMENT 4 23 April 1979 MILITARY SPECIFICATION INDICATORS, TEMPERATUBE, DIRECT-READING, BIMETALLIC, (3-INCH AND S-INCH DIAL) PAGE 1 Preamble: Delete and substitute: “This amendment forms a part of Mi
2、litary Specification MIL-I-l7244E( SHIPS) dated 20 April 1971, and is approved for use by the Naval Sea Systems Command, Department of the Navy and ie available for use by all Depart- ments and Agencies of the Department of Defense.“ 1.2.1, colum 2, line 2: Delete “index and reset“ and substitute “m
3、ax- and -min“. 1.2.3, line 7, columns 1 and 2: Delete “12“ and “200 to 1200“. Md Beneficial connents to bottom of page 1: Beneficial comuents (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Sys
4、tems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization .Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. PAGE 2 * 2.1, under “SPECIFICATIONS, FEDERAL“ add: “L-P-S16 - Plastic Sheet and Plas
5、tic Bod, Thermosetting, Cast“ . 2.1, under “STANDARDS, MILITARY“ add: “MIL-STD-167-1 - Mechanical Vibra- tions of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited )“ . 2 . 2, under “AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) “ delete and sub- stitute: “B18.6.3 - Slotted
6、 and Recessed Head Machine Screws and Machine Screw Nuts (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.)“ FSC 6685 1 of 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f
7、lIL-I-L72L19E (5) bb D 9999906 01122728 b m MIL-I-l7244E(SHIPS) AMENDMENT 5 PAGE 3 * 3.1: Delete and substitute: “3.1 First article. When specified, a sample shall be subjected to first article inspection (see 4.3 and 6.5): PAGES 3 and 4 * Table I: Delete and substitute: “TABLE I. Materials. Indicat
8、or Additional Mat er id part Case shall have satin or ASTM A 276, Corrosion-resisting Case requirements specification . Mater al steel brushed finish. 300 series Dial Dials shall have a white or ASTM A 276 Corrosion-resisting steel silvered background with black graduation and markings. Aluminum AST
9、M B 209 Windows for “ L-P-516, G3 Plastic all ranges Gaskets Shapes as required. Gaskets MIL-G-23652 Fluorocarbon rubber (250F max) less than 210F on ranges MIL-P-5516 Nitrile (Buna N) shall be suitable for not above 240F. rubber (180F max) Indicating “_ “_ Pointer shall be nonreflective pointer bla
10、ck and be of a plain and unembellished design. Index (Maximum and minimum indicator “- As approved by pointers only . ) NAVSEA Pointers shall be painted red and shall be of a plain and unembellished design. Reset knob Reset knob shall be accessible (nickel plated) only . ) steel or brass (Maximum an
11、d minimum indicator ASTM A 276 Corrosion-resisting to the operator. Protective All joints in the protective ASTM A 276 Corrosion-resisting tube tube shall be welded and steel leak tight. Jam nut ASTM A 276 Corrosion-resisting “_ steel 300 series 2 Provided by IHSNot for ResaleNo reproduction or netw
12、orking permitted without license from IHS-,-,-* MIL-I-172YYE (5) bb 779990b 01122727 8 MIL-I-l7244E(SBIPS) AMENDMENT 5 Add new paragraph 3.3.1: “3.3.1 Recovered materials. Unless otherwise specified herein, all equip- ment, material, and articles incorporated in the products covered by this speci- f
13、ication shall be new and shall be fabricated using materials produced from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become a s
14、ource of raw materials, as opposed to virgin raw materials. None of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified.“ 3.4.1: Delete and substitute: “3.4.1 ITM indicators. ITt4 indicators shall
15、 be identical to the ITD design except that it shall include 2 index pointers and a reset knob. The indicating pointer shall be designed so it actuates the index pointers to indicate the maximum and minimum temperature experienced by the sensing element. The reset knob shall be designed to reset the
16、 index pointers without damage to the indicating pointer or mechanism and shall be sealed to maintain a gas-tight enclosure.“ Table II: Delete and substitute: “TABLE II. Scale graduations and accuracies. Range of scale Maximum Number of degrees Number of degrees AccuracyLI OF dial indicator between
17、numbers between graduations - + OF 40 to 180 750 100 10 7 -0 50 to 750 5 50 50 5 5 -0 50 to 550 240 20 2 2.2 20 to 240 160 20 2 2.2 1/ ITM indicators. Additional error of plus or minus 1 percent of the range span permitted when index pointers are in contact with the indicating pointer.“ 3.4.2.1.1: D
18、elete. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-1721111E (5) bb 9 777770b 01122730 Y D MIL-I-l7244E( SHIPS) AMENDMENT 5 PAGES 5 and 6 Table IV: Delete and substitute: Test Accuracy Accuracy repeat- ability Inclination Thermal response
19、(lag) Lo ad Ambient pressure I Enclosure leakage “- i Vibration “TABLE IV. - Performance requirements. Requirement Test paragraph iee table II I 4.6.1 I hpeatability shall be within plus or minus 4.6.1.2 I 1/2 percent of range span ?lus or minus 1/2 percent of range span 4.6.2 (maximum) Jot to excee
20、d 15 seconds lag . 4.6.3 150 pounds. No calibration shift permitted 4.6.4 ndicators shall operate without evidence of 4.6.10 failure and show no damage after being sub- jected to an ambient gauge pressure of 22 + 1 lb/in2 for not less than 15 minutes shall show no signs of leakage I 4.6.5 Shall show
21、 no signs of condensed moisture (fog) 4.6.6 inside enclosure iccuracy shall be within limits of table II 4.6.7 before and after the vibration test. Pointer oscillation shall not exceed 3 percent of the range span. Center of oscillation shall be within plus or minus 1 subdivision of the reading obtai
22、ned under static condition. Indices of maximum and minimum indicators shall not shift during vibration test. A calibration shift placing data outside the data band established by the repeatability test (see 4.6.1.21, or significant wear on any vital part constitutes failure. Failure also results fro
23、m any instrument behavior not covered above which could be a serious vibra- tion performance defect. Significant wear is defined as wear which causes dimensional changes to gear teeth visible to the naked eye or which causes increased gearing backlash. Wear to other vital parts is significant if it
24、affects indicator performance. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE IV. Performance requirements. - Continued Test Shock - 9 blows Thermal stabilityL1 Requirement Calibration shift as a result of the shock test, calibration adjustm
25、ent shall bring performance within the requirements for accuracy and repeatability specified in this table, shall not exceed plus or minus 3 per- cent of range span. Drift shall not exceed 1/4 percent of the range span after 96 hours. However, if the drift is greater than 1/4 percent but less than 1
26、 percent of the range span the test shall be extended an additional ,288 hours to a total of 384 hours and then terminated. If the indi- cator shows a drift of less than 1 percent of the range span it will be acceptable. - I/ Applicable only to SOOF to 750F.“ Table IV, “1/“: - Delete “and 200 to 120
27、0F.“ 3.7, 3.7.1, and 3.7.2: Delete. PAGE 7 4.2 and 4.3: Delete and substitute: “4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) Firet article inspection (see 4.3). (b) Quality conformance inspection (see 4-41.“ “4.3 First article inspect
28、ion. First article inspection shall be con- ducted at a laboratory satisfactory to the Naval Sea Systems Conrand and shall consist of the examination and teste of table VII. First article inspection of either 18 or 24 temperature range will constitute acceptance of both ranges.“ 4.3.1 and table V: D
29、elete. Footnote A/ at end of page: Delete. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-17244E (5) bb W 9979906 0422732 B m MIL-I-l7244E(SHIPS) AMENDMENT 5 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
30、nse from IHS-,-,-llIL-I-lt32lIlIE (5) bb 7799906 Oq22733 T W XIL-I-l7244E(SHIPS) mNDMENT 5 TABLE VIII: Delete and substitute: “TABLE VIII. Classification of defects. Category Critical Mal or: 101 102 103 104 105 106 107 Minor : 20 1 202 203 204 205 Defects None Dimensions of stem or protective tube
31、nonconforming. Fails the load test. Jam nut dimensions and threads nonconforming. Materials nonconforming. Indicators do not meet the fog or enclosure leakage test. Joints in stem or protective tube not welded. Does not meet the ambient pressure test. Calibration adjustment not furnished or not iden
32、tified. Scale arc is not 300 degrees. Range not a standard range. Instruction sheet not furnished. Preparation for delivery, packing, packaging, and marking of containers nonconforming. PAGE 9 4.6.1, line 2: Delete “(except for range 200“ to 1200F in which case accuracy test to llOOoP only):“ Table
33、IX: Delete last item range symbol “12“ in its entirety. PAGE 10 4.6.7.1, line 1: Mter “The“ add: “ITD design“; to end of paragraph add: “The ITM design indicator shall be tested in accordance with MIL-STD-167-1, type I.“ 4.6.7.1.1: Delete and substitute: “4.6.7.1.1 Subsequent to the rapid explorator
34、y scan, the ITD design indi- cator shall be subjected to a detailed resonance search from 500 to 5 Hz in 5 Hz increments. Displacement shall be a8 specified in table X. Each 5 Hz incremental frequency shall be maintained for a minimum of 2 minutes. ITM design indicators shall be tested in accordance
35、 with the variable frequency test of MIL-STD-167-1, type I. Additionally, any frequency where resonance of any part of the indicator was detected during the initial rapid exploratory test shall be subjected to the 2 minute detail resonance search for ITD design or S minutes for ITM design.“ 7 Provid
36、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-“4.6.7.2.1, third and fourth senteqces: Delete and substitute: “Displace- ment shall be in accordance with table X for the ITD design, or in accordance with the vibratory displacement requirements of the endu
37、rance test of MIL-STD- 167-1, type I for the ITM design. The test shall run for 1 hour for the ITD design or 2 hours for the ITM design or until the indicator fails to meet the performance requirements of table IV, whichever occurs first.“ “4.6.7.2.2, third sentence: Delete and substitute: “Displace
38、ment shall be in accordance with table X for the ITD design, or in accordance with the vibratory displacement requirements of the endurance test of MIL-STD-167-1, type I for IT“ design“; line 7: delete “shall be run at 400 Hz“ and substitute “shall be run at 400 Hz for ITD design or 50 Hz for ITM de
39、sign.“ 4.6.9: Delete and substitute: “4.6.9 Thermal stability test .(50 to 750F range only). Thermal stability test shall be conducted on range 50 to 750F up to maximum scale reading 88 specified in MIL-STD-735 and shall include the following: (a) Drift - The indicator shall be tested for drift in a
40、ccordance with MIL-STD-735 and shall meet the requirements of table IV of this specification.“ Add new paragraph 4.6.10: “4.6.10 Ambient pressure test. Test is to be performed prior to the erclosure leakage test. The indicator shall be installed in a pressure chamber and exposed to a gauge pressure
41、of 22 f 1 lb/in2 for a period of not less than 15 minutes. After release of the pressure, there shall be no evidence of damage or failure. * PAGE 12 6.2.1: Delete and substitute: “6.2.1 ITM design is intended to be installed in ammunition pyrotechnic magazines and lockers in mounting brackets (see f
42、igure 6), NSN lH5340-LL-HDEK700. IT“ design shall be furnished with 3 inch dial size, back angle form, 4-inch stem length, -40 to 180F range.“ 8 6.2.2, line 2: Delete “200 to 1200F.“ 6.3, item (e): Delete. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
43、,-,-flIL-I-l1?244E (5) bb m 777990b 0422735 3 ?fIL-I-l7244E(SHIPS) AI(EmNT S PAGE 13 6.5 md 6.5.1: Delete and substitute: “6.5 First article inspection. Invitations for bids should provide that the Government reserves the right to waive the requirement for samples for first article inspection as to
44、those bidders offering a product which has been pre- viously acquired or tested by the Government, and that bidders offering such products, who wish to rely on such production or test, must furnish evidence with the bid that prior Government approval is presently appropriate for the pending contract
45、 * PAGE 14 Table XI - Navy Stock list (Contd), items 5 and 6: Delete and substitute: I “Il“ I 3 I 18 I A I 4 1 3/428UNS I 186685-00-042-3218“ Md the attached figure 6. LAST PAGE * DD Form 1426, Standardization Document Improvement Proposal: Delete address and substitute: “COMHANDEB NAVAL SEA SYSTEMS
46、 COMMAND (SEA 5523) DEPARTMENT OF THE NAVY WASHINGTON, DC 20362-5101“ 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I I I 1“- SH 11378 J I I NOTES : 1. Mounting brackets are available from stock, NSN lH534O-LL-HDEK700. 2. Thermolseter stock No. N
47、SN 1H6685-00-042-3218. FIGURE 6. Thermometer mounting bracket (for ITM indicator). 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-17244E (5) bb 999990b 0422737 7 m HIL-Z-l7244E(SHIPS) AXENDMENT 5 NOTE: The margin of this amendment is marked
48、 with asterisk to indicate where a change from the previous ,wndment was made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in this notation. Bidders and contractors are cautioned to evaluate the require- ments of this document based on the entire content irrespective of the marginal notation and relationship to the last previous amendment. Reparing activity: Navy - SEI (Roject 6685-N763) 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
