1、.s - 637 - distribution is un1 imi ted. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-15991 D(AS) MILITARY MI L-W-5086/ 1 Wire, Electric, Polyvinyl Chloride Insulated Nylon Jacket, Tin-Coated Copper Conductor, 600 Volt, 105 Degrees C MI L-W-5
2、088 Wiring, Aerospace Vehicle MIL-H-5606 Hydraulic Fluid, Petroleum Base, Aircraft, Missile, and Ordnance MIL-1-7444 Insulation Sleeving, Electrical, Flexible STANDARDS MILITARY MI L-STD- 105 Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications and standards required
3、 by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.1.2 Other Government documents. The following other Government documents form a part of this specification to the extent specified herein. Unle
4、ss otherwise specified, the issues shall be those in effect on the date of the sol ici tation. NATIONAL BUREAU OF STANDARDS Handbook H-28 - Screw Thread Standards for Federal Services (Copies of handbooks, and other Government documents required by the contractor in connection with specific acquisit
5、ion functions should be obtained from the contracting activity or as directed by the contracting activity. 1 2.2 Other publications. The following document(s form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopte
6、d shall be those listed in the issue of the DODISS specified in the solicitation. specified, the issues of the documents not listed in the DODISS shall be the issue of the nongovernment documents which is current on the date of the solici tation. Unless otherwise UNDERWRITERS LABORATORIES, INC. STAN
7、DARDS FOR SAFETY UL 498 Attachment Plugs and Receptacles UL 499 Electric Heating Appliances (Application for copies should be addressed to Underwriters laboratories, Inc., 333 Phingsten Rd., Northbrook, IL 60062.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
8、rom IHS-,-,-2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this specificat
9、ion, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Illustrations. Figures 1 through 4 are for the convenience of identification, and are not intended to preclude the purchase of marking machines which are otherwise in acor
10、dance with the requirements of this spec i fi cat i on. 3.2 Design. Marking machines furnished shall be of the manufacturers latest design. The design shall be such as to provide convenient and safe operation. All parts of the machines shall be new, designed and constructed to the requirements liste
11、d herein. All parts subject to wear, breakage and distortion shall be readily accessible for adjustment and repair. The entire machine shall be UL approved. Asbestos shall not be used in the construction of thi s machi ne. 3.2.1 Safety devices. The marking machine shall be fitted with safety devices
12、 or coverings for all parts that present safety hazards. All coverings shall be designed to provide access to guarded parts. 3.2.2 Bearings. Bearings and sliding surfaces shall be cast iron, steel, bronze or commercially available ball or roller bearings where required and conform to commercial requ
13、irements. 3.2.3 Lubrication. All bearings (except sealed-for-life type) and other working parts shall be provided with ample and suitable means of lubrication. 3.2.4 Interchangeability. All replaceable parts shall be constructed to definite standards, tolerances, and clearances in order that any suc
14、h part of a parficular type or model may be replaced or adjusted without requiring mod i f i c at i on . 3.2.5 Material. The material to be used in the construction of marking machines shall be of uniform quality and condition, and shall conform in composition, heat-treatment, and sui tabi 1 i ty to
15、 the standard practices of manufacturers producing equipment of the type called for in this speci f i cati on. 3.3 Construction. The marking machine and its equipment shall be complete so that when installed in its intended application it can be used for any operation for which it was designed. Cons
16、truction shall be free from any characteristics or defects that will prevent the machine from passing any of the examinations and tests specified herein. 3.3.1 Castings and forgings. All castings and forgings shall be free fom defects, scale and mismatching. In no event shall such processes as weldi
17、ng, peening, plugging or filling with cold solders or metallic pastes be used on castings or forgings for reclaiming any parts of flexible shaft machines. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-15991 D(AS) 3.3.2 Welding, brazing or s
18、oldering, Welding, brazing or soldering shall be employed only where those-operations are included in fabrication of the original design. These operations shall not be employed as repair measures for defective parts. 3.3.3 Surfaces. All surfaces of all castings, forgings, or molded parts shall be cl
19、eaned and free of sand, dirt, fins, sprues, scale, flux or other harmful or extraneous materials. External surfaces shall be smooth and all edges shall be rounded or beveled. 3.3.4 Painting. Marking machine shall be painted in accordance with the manufacturers standard practice. 3.3.5 Fastening devi
20、ces. All screws, pins, bolts, and similar parts shall be installed with means of preventing loss of tightness. All such parts when subjected to removal or adjustment, shall not be swaged, peened, stacked or otherwise permanently deformed. 3.3.6 Threads. All threaded parts shall be in the inch system
21、 and shall conform to Handbook H-28. 3.4 Marking machines, style A. Style A marking machine shall be similar 3.4.1 Type. Type shall be brass, zinc or equivalent hard surfaced to figure 1 and 2 and shall comply with 3.4.1 through 3.4.4. material able to retain its character with repeated heatings and
22、 imprintingc. Type shall have a hardness at 70F of not less than 50 on the Rockwell scale. “B“ 3.4.1.1 Wire marking type. Wire marking letter and numeral type sets shall be furnished as shown in table I in radius of type face for use on wire diameters listed for the character height and position spe
23、cified (see 6.2). Table I - Wire marking, type for style A marking machine. Character I Radi us I Used on wire of outside diam Height I Position type face Minimum I Inch I I Inch I Inch I I I 0.065 Verti cal O. 050 Horizontal 1/16 Horizontal 5/64 Horizontal 7/64 Horizontal 0.024 O. 027 O. 038 O. 055
24、 O. 125 O. 039 O. 052 O. 068 O. 096 0.166 of !ter Max i mum Inch o. 100 O. 070 O. 095 0.165 and larger 3.4.1.2 Sleeve marking type. Letter and numeral type sets for marking insulation sleeve shall have a flat face and shall be furnished in 0.052, 1/16-, 5/64-, 7/64- and 1/8-inch heights as specified
25、 (see 6.2). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.4.1.3 Type sets. A set of letters shall consist of 7 pieces of gothic style type for each letter of the alphabet. A set of numerals shall consist of 10 pieces of type for each digit, O t
26、hrough 9, inclusive. Other figures of type such as arrows, stars, and asterisks, shall also be available at the option of the procuring agency. All edges of the stamping face shall be provided with radii, to eliminate sharp corners or edges that may cause impairment of dielectric strength of sleevin
27、g or wire insulation. 3.4.2 Components. Marking machine shall consist of frame, base, type assembly, heating unit, electrical equipment, foi 1 assembly, operating mechanism, holding fixtures and foil. 3.4.2.1 Frame. The frame shall be designed to provide support and align the various assemblies. The
28、 frame shall be of sufficient strength and rigidity to insure proper performance. integral with a base having provision for bench mounting. The frame shall be attached to-or be 3.4.2.2 Base. The base shall be machined flat and true and be designed to receive various holding fixtures. 3.4.2.2.1 Base
29、platform. Unless otherwise specified (see 6.2, the machine base shall be securely attached to a hardwood base platform at le 3/4-inch thick or a suitable metal base platform. The base platform shal attached to provide working area in front of the marking machine. 3.4.2.3 Type assembly. Type assembly
30、 shall consist of type, type ho type holding head, and heating unit. 3.4.2.3.1 Unless otherwise specified (see 6.21, each machine (Type A only) shall be supplied with the following sets of 19-point body type: One set of capital letters 5/64-inch high with a radius of 0.055 inch (for wire). st be der
31、, face (b) One set of numerals 5/64-inch high with a face radius (Cl Ten each, arrows, hyphens, and asterisks, and 16 (d) One set of capital letters 5/64-inch high, flat face (e One set of numerals 5/64-inch high, flat face (for (f) Ten each arrows, hyphens and asterisks and 16 each (g) Two type cas
32、es (one for each set) with compartment of 0.055 inch (for wire). spacers of the 4-point size and M Quads. (for sleeving). sleeving). spacers of the 4-point size and M Quads. for holding type in alphabetical and numerical order. . 3.4.2.3.2 Type holding head. The type holding head shall be in close p
33、roximity to the heating unit for rapid heating. type in the proper position for the imprinting through the foil. type holder shall be accomplished without use of tools. The holder shall clamp the Change of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
34、,-,-MIL-M-L577LD 36 = 9997706 0245062 2 MIL-M-15991 D(AS1 3.4.2.3.3 Type holders. Unless otherwise specified (see 6.21, type holders for style A shall be capable of securely holding in alignment 1 to 18 digits of type. holder 2 inches wide. Three type holders shall be provided with each machine. Sty
35、le A machines shall be designed to accept a 1-line type I I I Table of Temperature Range I I I I Style A 150“ to 500F Style i3 150“ to 300F Min. I I I 3.4.2.4 Heating unit. The heating unit shall operate on 115 volt alternating current (a.c.1 and shall be manually controlled within a temperature ran
36、ge of 150“ to 500F. 500F in 10F increments shall be provided. controlled by a convenient switch shall be provided in series with the heater and heater control device. assembly, switch, wiring and heating element shall conform to applicable requirements of UL 498 and Ut 499. A visual heat indicator g
37、raduated to A bright indicator light 3.4.2.5 Electrical components. All electrical components including cable 3.4.2.5.1 Cable assembly. Each marking machine shall be supplied with a cable assembly as an integral part of the equipment. Cable assembly shall consist of at least 3 feet of three-conducto
38、r commercially designated SJ or S type cable of the capacity required for the heater size furnished. Connector plugs shall conform to UL 498 requirements for two-pole, 3 wire grounding devices rated 15 amperes, 125 volts. 3.4.2.5.2 Switch. Switch shall be two-pole single throw and si-iall to the swi
39、tch requirements of UL 499. conform 3.4 conform protect 3.4 of foil be caDa 2.5.3 Wiring and heating element. Wiring and heating element shall to the applicable requirements of UL 499 for spacings, connections and on from mechanical damage. 2.6 Foil assembly. Means shall be provided for supporting t
40、he rolls in the proper position for imprinting of the type. le of usinq foil 1, 1-1/2 or 2 inches in width (Style A only). The The assembly shall foil assembly shali be properly linked to the operating mechanism for suitable feeding of the foil. 3.4.2.7 Operating mechanism. There shall be a handle o
41、f sufficient length to easily actuate the operating mechanism. Each imprinting motion of the handle shall automatically advance the foil to its next impression space. There shall be an adjustable stop to govern the impression depth of the type. Provided by IHSNot for ResaleNo reproduction or network
42、ing permitted without license from IHS-,-,-MIL-M-L577LD 36 W 7797706 0245063 4 W 3.4.2.8 Wire holding fixture. Wire holding fixtures for style A shall Dermit the wire to be moved smoothly through the fixture while retaining wire in the proper marking position and permit rapid interchange of differen
43、t wire size fixtures. Holding fixtures shall be designed with a marking capacity of 18 digits of type. The fixtures shall be interchangeable so that fixture for additional wire diameters will fit the machine. Outside diameter of wire insulation shall be specified for marking machine requiring holdin
44、g fixtures for each size (B style A see 3.4.1; and style 6 see 3.5.1, and 3.5.1.1 when specified. (f) Type holders specify extra capacity when required (see 3.4.2.3.3 and 3.5.2). (g) For style A marking machine specify holding fixture wire size, outside insulation diameter and type of insulation (se
45、e 3.4.2.8). (h) Specify sleeve holding ftxture when required for style, A (see 3.4.2.8.1) (h) Specify sleeving halding fixture when required for style A (see 3.4.2.8.11. (i) Foil assembly; for style A see 3.4,2.6 and for style B (see 3.5.4). (j) Number of spools of marking foil and colors required;
46、for style A see 3.4.2.9 and for style B see 3.5.5. (k Instruction baok requirements, if different, (see 3.7). (1) Level af preservation and packaging and packing required (see 5.12. 6.3 Subject term keyword listing. Hand-operated marking machine, Machi ne, marking, hand-operated. Marking, flat surfa
47、ce of fabric, leather, plastic, Marking machine, hand-operated. Marking, electric wire and cable insulation or sleeving. Operated marking machine, hand. 6.4 Changes form previous issue. Asterisks (or vertical lines) are not used in this reviiibnta identify changes, with respect from the previous iss
48、ue due to the extensiveness 0.f the changes. Preparing activity: (Project No. 3695-NO08) Navy - AS 12 . .I %. f- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Figure 1. Style A hand-operated marking machine. 13 Provided by IHSNot for ResaleNo repro
49、duction or networking permitted without license from IHS-,-,-Figure 2. Style W hand-operated marking machine. 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FIGURE 3. Style B hand-operated marking machine. 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FIGURE 4. Style B h
