1、b U 8 MIL-C-13874K 43 999990b L1b2Y52 520 MILITARY SPECIFICATION COMPRESSORS, RECIPROCATING AND ROTARY, AIR, ELECTRIC MOTOR DRIVEN I INCH- POUND 1 MIL-C-13874K 16 Julv 1992 SUPERSEDING 17 July 1985 MIL-C- 138745 This specification is approved for use by all Departments and Agencies of the Department
2、 of Defense. 1. SCOPE 1.1 Scope. Yhis specification covers electric motor-driven, garage type, reciprocating arid rotary air compressors. 1.2 Classification. The compressors shall be of the following types, classes, and sizes as specified (see 6.2). Type 1 Type II Class 1 Class 3 Class 4 Size Size S
3、ize - Eieciprocating. - Eiotary. - Tank-mounted. - Caster-mounted. - nase-mounted. - Li cfm at 175 psig. - 1-5 cfm at 175 psig. - ;!5 cfm at 175 psig. 2. APPLICABLH DOCUMENTS 2.1 Government documents 2.1.1 Specifications and standards. The following specifications and standards form a part of t:his
4、document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and upplement thereto, cited in the solicitation (see 6.2). _ Beneficial comments (recommendati
5、ons, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: USA Belvoir Research, Development, and Engineering Center, ATTN: STRBE-TSE, Fort Belvoir, VA 22060-5606 by using the Standardization Document Improvement Proposal (DD Form 1426) a
6、ppearing at the end of this document or by letter. AMSC N/A FSC 4310 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-C-13874K 43 m 9999906 33b2453 4b7 MIL-C-13874K
7、 SPECIFICATIONS FEDERAL W-C-586 FF-C-88 GG -G- 91 WW-C-566 MI LI TARY MIL-V-173 MIL-P- 514 MIL-T- 704 MIL-F-3541 MIL-C-3600 MIL-G-3859 MIL-G-10924 MIL-B-11040 MIL-S-12514 MIL-C-13486 MIL- G - 2 3 8 2 7 MIL-C-46168 MIL-C-53039 STANDARDS FEDERAL FED-STD-H28 MI LI TARY MIL-STD-130 MIL-STD-209 MIL-STD-8
8、38 MIL-STD- 889 MIL-STD-1472 MIL-STD-1474 (Unless otherwise - Conduit Outlet Boxes, Bodies, and Entrance Caps, - Casters, Rigid and Swivel, Industrial, Heavy-Duty. - Gages, Tire Pressure, Self-contained and Inflator-Gage, - Conduit, Metal, Flexible. Electrical: Cast Metal - for Shore Use. Pneumatic
9、Tire. - Varnish, Moisture- and Fungus-Resistant (for Treatment of Communications, Electronic, and Associated Equipment. - Plate, Identification, Instruction and Marking, Blank. - Treatment and Painting of Materiel. - Fittings, Lubrication. - Compressors, Rotary, Power-Driven; and Compressors, Recipr
10、ocating, Power-Driven: Air and Gas (Except Oxygen and Refrigerant), Packaging of. - Grease Guns, Hand-Operated, Lever, Push and Screw Type. - Grease, Automotive and Artillery. - Belt, V: Drive. - Starters, Motor; Across-The-Line and Reduced Voltage - Cable, Special Purpose, Electrical: Low-Tension,
11、Heavy - Grease, Aircraft and Instrument, Gear and Actuator Screw. - Coating, Aliphatic Polyurethane, Chemical Agent - Coating, Aliphatic Polyurethane, Single Component, Types, A-C Induction, 3/4 to 100 HP, Manual and Electric. Duty Single Conductor and Multiconductor. Resistant. Chemical Agent Resis
12、tant. - Screw-Thread Standard for Federal Services. - Identification Marking of US Military Property. - Slinging and Tiedown Provisions for Lifting and Tying - Lubrication of Military Equipment. - Dissimilar Metals. - Human Engineering Design Criteria for Military Systems, Equipment, and Facilities.
13、 - Noise Limits for Military Materiel. Down Military Equipment. indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2 Provided by IHSNot for Resa
14、leNo reproduction or networking permitted without license from IHS-,-,-NIL-C-L3874K 43 999990b 1162454 3T3 W MIL-C-13874K 2.2 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents wh
15、ich are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation, Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) B15.1 - Mechanical
16、 Power Transmission Apparatus, Safety Standard for. (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.) AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Boiler and Pressure Vessel Code, Sections VI11 and IX. Performance Test Co
17、de 9 - Displacement Compressors, Vacuum Pumps and Blowers. (Application for copies should be addressed to the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017.) NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA) ICs 6 - Enclosures for Industrial Controls and Syste
18、ms. MG-1 - Motors and Generators. (Application for copies should be addressed to the National Electrical Manufacturers Association, 2101 L Street, NW, Washington, DC 20037.) SOCIETY OF AUTDMOTIVE ENGINEERS, INC (SAE) 5492 - Rivets and Riveting. (Application for copies should be addressed to the Soci
19、ety of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096.) SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT Rule 422 - Usage of Solvents. (Application f13r copies should be addressed to the South Coast Air Quality Management District, 9150 Flair Drive, El Monte, CA 91731.) UNDERWRI
20、TERS LBORATORIES, INC. (UL) UL 6 - Rigid Metal Conduit. UL 514 - Nonmetallic Outlet Boxes, Flush Device Boxes, and Covers. UL 1242 - Intermediate Metal Conduit. (Application for copies should be addressed to the Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL 60062.) 3 Provided b
21、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-13874K 43 W 99999Ob Llb2455 23T W MIL-C-13874K (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also m
22、ay be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws a
23、nd regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Description. The air compressor shall be of the commercial classification “garage type“ and shall consist of either an air-cooled, piston compressor unit or air-oil cooled, rotary compressor unit, both types with an ai
24、r reservoir, airhose, and power unit, 3.2 First article. Unless otherwise specified (see 6.2), a sample shall be subjected to first article inspection (see 6.3) in accordance with 4.3. 3.3 Material. Material shall be as specified herein. Materials not specified shall be selected by the contractor an
25、d shall be subject to all provisions of this specification. 3.4 Material deterioration prevention and control. The air compressor shall be fabricated from compatible materials, inherently corrosion resistant or treated to provide protection against the various forms of corrosion and deterioration th
26、at may be encountered in any of the applicable operating and storage environments to which the air compressor may be exposed. 3.4.1 Dissimilar metals. Dissimilar metals shall not be used in intimate contact with each other unless protected against galvanic corrosion. Dissimilar metals and methods of
27、 protection are defined and detailed in MIL-STD-889. 3.4.2 Cadmium PlatinK. Cadmium plating and cadmium plated parts shall not be used. 3.4.3 Identification of materials and finishes. The contractor shall identify the specific material, material finish or treatment for use with component and subcomp
28、onent, and shall make information available upon request to the contracting officer or designated representative. 3.4.4 Recovered materials. For the purpose of this requirement, recovered materials are those materials which have been collected from solid waste and reprocessed to become a source of r
29、aw materials, as distinguished from virgin raw materials. The components, pieces and parts incorporated in the air compressor may be newly fabricated from recovered materials to the maximum extent practicable, provided the air compressor produced meets all other requirements of this specification. U
30、sed, rebuilt or remanufactured components, pieces and parts shall not be incorporated in the air compressor. 3.5 Operatin5 temperature. the compressors shall perform as specified herein in any ambient temperature from 120 to -25 OF. 4 Provided by IHSNot for ResaleNo reproduction or networking permit
31、ted without license from IHS-,-,-flIL-C-13874K 43 0b 1Lb245b 176 = MIL-C-13874K 3.6 Safety. All rotating or reciprocating parts and other parts subject to high operational temperatures that are of such a nature or are so located as to bi a hazard to operating personnel, shall be guarded or insulated
32、 to the extent necessary to eliminate the hazard. Protective devices shall not impair the operating functions. 3.7 Maintainebility. The compressor shall operate as specified herein without repair or maintenance other than the contractors recommended normal scheduled adjustments and servicing, as est
33、ablished by a maintenance schedule prepared and submitted by the contractor prior to test. All major assemblies and installed attachments shall be accessible for maintenance repair and replacement without removal of other major assemblies and installed attachments not normally removed. Cover plates
34、which must be removed for component adjustment shall be equipped wit1 quick-disconnect fastenings. All fasteners shall be of corrosion-resistant material or shall be treated to be corrosion resistant. All screw threads shall be in accordance with FED-STD-H28. Maximum use shall be made of interchange
35、able hardware and fastening devices, Use of self-tapping screws shall not be permitted. Mears for drainage of lubricants, and condensate traps shall be in an accessible location and shall drain to a container without splashing on any component or on operating personnel. The drain outlets shall be so
36、 located to facilitate complete drainage. All drain outlets shall be labeled to indicate the reservoir being drained (i.e., “AIR TANK DRAIN“, “OIL DRAIN“, etc.) in accordance with 3.24. Each maintenance, assembly or disassembly operation performed as a result of testing shall be accomplished by not
37、more than two soldiers using commoi tools and special tools furnished with the compressor. 3.8 Airhose. The airhose shall be the commercial heavy duty type 5/16 inch ID minimum working pressure shall be not less than 200 pounds per square inch (psi) and unless otherwise specified (see 6.2) shall be
38、not less than 50 feet long. Ail hose couplings shall be internal swivel fitted, having a 1/4-inch, standard, straight-pipe thread and a 30-degree tapered seat and shall be fitted at one end with an inflator gage conforming to GG-G-91, type III, style 3. 3.9 Intake air filter and silencer. The compre
39、ssor shall be provided with a dry-type combination intake air filter and silencer. 3.10 Lubrication. All surfaces requiring lubrication shall be provided with a means for lubricating. A lubrication chart shall be provided in a clearly visiblr location. The chart shall indicate the lubrication points
40、, the type of lubricant the frequency of lubrication, and for oil reservoirs, the quantity of lubricant ii accordance with 3.24. 3.10.1 Lubricants. The compressor shall operate as specified herein when lubricated with military lubricants (see 6.4). 3.10.2 Lubrication fittinm. Lubrication fittings sh
41、all conform to MIL-F-3541 type I, II, or III. Fittings shall be located in protected positions. Fittings shall be accessible to a grease gun conforming to MIL-G-3859, type II. Accessibility to fittings shall be provided without the removal or adjustment of accessories or parts. Panels and plates equ
42、ipped with hand-operable, quick- disconnect fasteners may be removed to provide accessibility to lubrication fittings. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-13874K 3.10.3 Pressure-release device. A pressure-release device shall be p
43、rovided where the use of pressure lubricating equipment will damage grease seals or other parts. 3.10.4 Enclosures with intenral reservoir of lubricant. Enclosures, such as gear chase and transmission housings which contain a reservoir of lubricants for the lubrication of the parts enclosed, shall b
44、e equipped with dipsticks, check plugs not less than 1/2-inch pipe size, or sight gages to determine the level of the lubricant. Each enclosure shall be equipped with a drainplug. Each enclosure shall be equipped with a means for filling the enclosure with lubricant. drainplug shall be located so th
45、at removal of the drainplug will result in complete drainage of the lubricant from the enclosure. Drainage shall be to a container when the compressor is in its normal position. Tubes may be used to convey the lubricant from the drain to a container. Accessibility to the drain plug, the filling mean
46、s, and the lubricant-level checking device shall be obtained without the removal or adjustment of accessories or parts. The 3.10.5 Delivery lubrication service. When delivered, all components, except those for which preservatives are specified in 5.1, shall be lubricated. Grease lubrication, excludi
47、ng lubrication of sealed bearings, shall be with greases conforming to MIL-G-10924 or MIL-G-23827. Unless otherwise specified herein, all components shall be filled to the operating level with military oils designated for use in the temperature range as specified herein. Each lubricated component sh
48、all be tagged in a conspicuous place to indicate the temperature range and grades of oils and greases used. 3.11 Funnus- and moisture-resistance. The electrical circuity, including all components and connections except as specified below, shall be protected from the effects of moisture and fungus gr
49、owth by an overall treatment with a varnish conforming to MIL-V-173, composition I or II as applicable, 7 percent salicylanilide (by weight) based on the nonvolatile content of the varnish: a. Components or circuit elements that are inherently fungus and moisture b. Components or circuit elements whose functions will be adversely resistant or which are hermetically sealed need not be treated. affected by the varnish coating shall not be treated. When used, the varnish shall b
