Technicians Handbook - Historic Naval Ships Association

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• A military alteration that changes or improves the operational or military characteristics of aship.• A technical alteration that generally concerns personnel safety and equipment effectiveness.• An alteration-equivalent-to-repair (AER) could be one of three types. One involves substitution,without change in design, of approved, different material, available from standard stock. Thesecond involves replacement of worn or damaged parts, assemblies, or equipment with those oflater and more efficient design that have been approved by the responsible systems command.The last type is used for strengthening of parts that need repair or replacement to improve thereliability of the parts, provided no other change in design is involved.ALTERATION RESPONSIBILITIES.—Ship alterations (SHIPALTS) involve material under thetechnical control of the <strong>Naval</strong> Sea Systems Command (NAVSEA). Alterations which affect shipboardsystems and equipment under the technical control of other systems commands; for example, airalterations (AIRALTS), ordnance alterations (ORDALTS), and special program alterations (SPALTS),are not SHIPALTS. However, they may require concurrent SHIPALTS if changes affect shipboardsystem interface.ELECTRONIC EQUIPMENT FIELD CHANGES.—Field changes are identified by type andclass. The type depends on the material included in the change kit or furnished by the installing activity.The class refers to the funding and the installation responsibility.Details concerning various types of and approval authority for alterations can be found in theElectronics Installation and Maintenance Book (EIMB), General, NAVSEA SE000-00-EIM-100.Material IdentificationAt some time in your work, you will probably have to replace a defective part or component. If youare familiar with national stock numbers (NSNs), Navy item control numbers (NICNs), part numbers(PNs), and the Coordinated Shipboard Allowance List (COSAL), getting the replacement should be asimple chore.NATIONAL STOCK NUMBERS (NSNs).—An NSN is a 13-digit stock number used to identifyan item of material in the Federal Catalog System of the Department of Defense. It consists of a four-digitfederal supply classification (FSC) and a nine-digit national item identification number (NIIN). The firsttwo digits of the FSC denote the group or major division of materials and the last two digits denote theclass of subdivision of material within a group.Examples of groups are:GROUPTITLE31 Bearings48 Valves59 Electrical and Electronic Systems Components79 Cleaning supplies1-136
A complete listing of groups is provided in NAVSUP P-485, Afloat Supply Procedures. The NIINconsists of a two-digit national codification bureau (NCB) code and seven digits which, in conjunctionwith the NCB code, uniquely identify each NSN item in the Federal Supply System. For example:Two NCB codes are assigned for the United States, 00 and 01. Code 00 identifies all FSNs (11-digitfederal stock numbers used prior to NSNs) assigned prior to 31 March 1975. Code 01 identifies thenumbers assigned after that time. The NCBs must be included and be correct, or the material may berejected or you may receive the wrong material.NAVY ITEM CONTROL NUMBERS (NICNs).—Material not included in the Federal CatalogSystem, but stocked or monitored in the Navy Supply System, are listed by 13-character Navy itemcontrol numbers (NICNs). These NICNs are readily identified by a two-position alpha code whichsignifies the type of NICN. This code and a seven-position alphanumeric uniquely identify each NICNitem in the Navy Supply System. NICN codes that are currently used and examples of NICNs follow:NICN CODE APPLICATION EXAMPLELE Poseidon items common to Trident 1220-LE-F00-4016LF Stock numbers for forms 1018-LF-504-2201LK Aircraft change kit numbers 1234-LK-UA1-2345LP Stock numbers for publications 0530-LP-485-0000LS Special programs alteration kit numbers 1234-LS-123-4567LX ASO local control numbers 1560-LX-NPI-2345LL Local control numbers (Temporary) 4820-LL-000-1234Local control numbers (Permanent)7520-LL-CAO-0001Note: The permanent local control number can always be recognized by a C in the seventh position.Parts can be ordered by using a NIIN or NICN.PART NUMBERS (PNs).—A part number (also known as reference number) may be used toidentify a material item or to assist you in finding the current NSN. Part numbers include old NSNs,FSNs, electron tube type numbers, and electronic equipment circuit symbol numbers. Two otherimportant sources for reference numbers are manufacturers' part numbers and Navy drawing and piece1-137
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SPECIAL PUBLICATIONSeptember 1998Na
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PREFACESpecial Publications (SPs) a
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TABLE OF CONTENTSCHAPTERPAGE1. The
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Module 11, Microwave Principles, ex
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Student CommentsCourse Title:NEETS
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• Be cautious when working in voi
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Electric ShockElectric shock may ca
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In this situation, the immediate ad
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Lean or rock forward with elbows lo
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possible) over the wound and firmly
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(1) NEAREST THE WOUND and (2) BETWE
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Shock• Be sure you draw the tourn
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Liquids should be administered spar
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drinks or stimulants. Get the victi
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Figure 1-11.—RC time constants.Fi
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Ac current formulas are:Ohm's law f
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Parallel inductors without coupling
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Another way to calculate reactive p
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ResistanceRESISTANCE is the opposit
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Since:Transformer power:1-30
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WARNINGRf voltages may be induced i
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Alpha is always less than 1 for a c
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WavelengthCAUTIONBecause vacuum tub
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Minimum radar range = (pulse width
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Log or dBGain or mw11 12.510 109 88
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Table 1-1.—CB Style Capacitor Par
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Table 1-3.—CYR10 Style Capacitor
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Figure 1-16.—Ceramic capacitor co
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Table 1-4.—Principal Applications
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Figure 1-18.—Resistor color code.
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MilitaryspecificationMIL-R-39005MIL
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Figure 1-19.—Color code for trans
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Figure 1-21.—Transistor lead iden
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numbers and part numbers can be fou
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SizeTable 1-10.—Current-Carrying
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Jan TypeOverallDiameter (ins)Table
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Table 1-13.—MS Connector Identifi
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Figure 1-23.—Insert arrangements
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Figure 1-25.—Typical BNC connecto
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Figure 1-28.—Attaching HN connect
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Table 1-16.—N Series Connectors w
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Insulation, Heat Shrinkable Sleevin
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Table 1-19.—Shrinkable Tubing Par
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Table 1-21.—New Style Military Fu
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Conversion and Equivalent TablesTab
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Table 1-24.—Conversion Chart—Co
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Table 1-24.—Conversion Chart—Co
Page 96 and 97: Figure 1-33.—Electrical symbols.
Page 98 and 99: Figure 1-34.—Electronic/logic sym
Page 104 and 105: Figure 1-35.—Fiber optic symbols.
Page 106 and 107: Table 1-26.—Frequency Spectrum Us
Page 108 and 109: Joint Electronic Type Designation S
Page 110 and 111: Table 1-29.—Microcircuit Part Num
Page 112 and 113: Table 1-29.—Microcircuit Part Num
Page 114 and 115: CIRCUIT53MC54MC55MC56MC57MC58MC59MC
Page 116 and 117: CIRCUITQAQDQXRARDRW4SNSPTD1TD2TD5TD
Page 118 and 119: CIRCUIT4JZ5JZ6JZ7JZ8JZ9JZ10JZ11JZTa
Page 120 and 121: CIRCUITX29JX34JX40JX41JX42JX43JX44J
Page 122 and 123: Table 1-34.—Common LogarithmsN 0
Page 124 and 125: Table 1-35.─Trigonometric Functio
Page 130 and 131: Table 1-36.—Julian Date CalendarD
Page 132 and 133: Table 1-38.—Effects of Heat and H
Page 134 and 135: Table 1-40.—Old and New Specifica
Page 136 and 137: Remember to use the proper safety p
Page 138 and 139: Figure 1-38.—Computation of phase
Page 140 and 141: Figure 1-40.—Lissajous patterns f
Page 142 and 143: Figure 1-42.—Octopus schematic di
Page 144 and 145: Figure 1-46.—Combination displays
Page 148 and 149: numbers. They can be easily convert
Page 150 and 151: support equipment. All aircraft equ
Page 152 and 153: Publications and DocumentsVarious p
Page 154 and 155: REFERENCESAfloat Shopping Guide, NA
Page 156: NEETS, Module 9, Introduction to Wa
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Technicians Handbook - Historic Naval Ships Association

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