1、“3018054 0002835 T29 Twe I (Floor mounted) INCH-POUND A-A-5935 1 28 September 1999 SUPERSEDING 1 O November 1988 MIL-G-45072G Size Horsepower 1 1 /3 .- 2 112 COMMERCIAL ITEM DESCRIPTION GRINDING MACHINE, DRILL II The General Services Administration has authorized the use of this commercial item desc
2、ription as a replacement for MIL-G-45072G for all federal agencies. 3 1 /2 4 1 1 1 /4 1. SCOPE. This commercial item description (CID) establishes the government acquisition requirements for floor-mounted or bench-mounted grinding machines used to sharpen drill bits. 3 2. CLASSIFICATION. Floor-mount
3、ed machines shall be classified as type I and bench-mounted machines shall be classified as type II. Each type shall be hrther classified in various sizes which shall represent the drive motor horsepower ratings as listed in table I. The grinding machine type and size to be supplied shaii be specifi
4、ed in the acquisition order (see 7.4). 112 TABLE I. Drill bit erindine machine classifications. I (Benchmounted 1 2 I 1 /3 3. SALIENT CHARACTERISTICS. The grinding machine shaii comply with the requirements specified in this document and in American National Standards Institute (ANSI) standard B11.9
5、, “Safety Requirements for the Construction, Care, and Use of Grinding Machines“. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other data which may improve this document should be sent to: Defense Supply Center Richmond (DSCR), ATTN: DSCR-VBD, 8000 Jeffers
6、on Davis Highway, Richmond, VA 23297-561 O. AMSC NIA FSC 34 15 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M OL805 O002836 965 Characteristics A-A-5935 1 Requiremen
7、ts Size 1 3.1 Dimensions. Type I grinding machines shall meet the dimensional requirements specified in table II. Type II machines shall meet the dimensional requirements specified in table III. TABLE II. Floor-mounted grinding machine dimensional reauirements. Drill diameter (inches) Drill length (
8、inches) Point angle (degrees) Characteristics 1/16 to 1/2 1 /I 6 to 314 1/8 to 1-1/8 2 to 7 2 to 10 2 to 13 90 to 160 90 to 160 90 to 160 TABLE III. Bench-mounted grinding machine dimensional reauirements. i i Lip-relief angle (degrees) 6to i5 6to 15 6 to 15 , Flutes (number) 2 2 2 3.2 Tolerances. T
9、he grinding machine shall grind a drill bit point angle within +5 degrees of the setting through the full machine range of 90 to 160 degrees. The lip-relief angles shall be equal within fl degree. The point-angle and lip-relief angles shall be concentric around the drill body cylinder with no irregu
10、larities of more than 0.002 inch Total Indicator Readout (T.1.R). The ground finish of each drill point shall have no surface irregularities of more than 20 micrpinches. 3.3 Components. The grinding machine components shall include a grinding wheel, drive motor, and feed mechanism. The wheel shall c
11、omply with ANSI specifications B74.2, “Specifications for Shapes and Sizes of Grinding Wheels, and for Shapes, Sizes and Identification of Mounted Wheels“, and B74.13, “Markings for Identifjmg Grinding Wheels and Other Bonded Abrasives.“ The drive mor shall comply with National Electrical Manufactur
12、ers Association (NEMA) standard MG 1, “Motors and Generators.“ The feed mechanism shall be manuaiiy controlled and operated. 3.4 Accessories. Accessories such as automatic or semi-automatic feed mechanisms, wheel- truing devices, coolant systems, and work iights are not required unless othenvise spe
13、cified in the acquisition order (see 7.4). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9B18054 0002837 8T1 W A-A-5935 1 3.5 Nameplate. A nameplate shall be securely attached to the machine. Unless otherwise specified in the acquisition order (see
14、 7.4), the nameplate shall contain: a. Nomenclature and classification (see table 1) b. Manufacturers model designation c. Electrical power requirements (voltage, fiill-load current, phase, frequency) d. Short-circuit/over-current ratings e. Manufacturers name f. Contract or order number g. National
15、 stock number h. Date of manufacture 4. REGULATORY REQUIREMENTS 4.1 Recovered materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 5. QUALITY ASSURANCE PROVISIONS
16、 5.1 Product conformance. The grinding machines supplied shall meet the salient characteristics requirements of this CID; conform to the manufacturers drawings, specifications, standards, and quality assurance practices; and be the same product as that which is offered for sale in the commercial mar
17、ket. The government reserves the right to require proof of such conformance. 5.2 Market acceptabiiity. The product offered must have been previously sold either to the government or on the commercial market. 6. PACKAGING 6.1 Preservation. uacking. and marking. The drill bit grinding machines shall b
18、e preserved, packed, and marked as specified in the acquisition contract or order (see 7.4). 7. NOTES 7.1 Sources of documents 7.1.1 ANSI standards. Copies of ANSI standards may be obtained fiom the American National Standards Institute, 11 West 42nd Street, New York, NY 10036-8002. 7.1.2 NEMA stand
19、ards. Copies of NEMA standards may be obtained fiom the National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209. 7.1.3 m. The FAR may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402-000 1. 3 Provided
20、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-= 9018054 0002838 738 A-A-5935 I 7.2 National stock numbers (NSNs). The NSNs shown below are assigned for the listed mache types and sizes as specified in this document. Other NSNs may also appiy. Type Size Ass
21、igned NSN I 4 341 5-00-223-6567 34 15-0 1-347-2905 II 1 34 15-00-242-5788 34 15-00-5 1 7- 1050 341 5-00-242-5789 2 7.3 Sources of sudy. The manufacturers listed below supply grinding machines which meet the salient characteristics requirements of this CID. Competition is not limited to the listed fi
22、rms. TDG Machine Products, Incorporated PO Box 2029 Merrimack, NH 03054 RUSH Machinery, Incorporated Route 364 Rushville, NY 14544 Service Precision Grinding 3204 State Highway 94 Franklin, NJ 074 16 (800) 81 1-0394 (973) 827-227 1 (7 16) 554-3070 7.4 Ordering data. Acquisition documents must specif
23、i: a. Title, number, and date of this document b. Type and size classification of grinding machine required (see table I) c. Accessories required, if any (see 3.4) d. Additional nameplate information, if any (see 3.5) e. Packaging requirements (see 6.1) _. 7.5 Part identification number (PIN). The p
24、art identification numbering method shown below is intended for government purposes only and is not a requirement for any contractor. AA59351 - X X I TT CID Number A - Floor B - Bench Mounted Size (see table I) 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
25、om IHS-,-,-MILITARY INTERESTS: Custodians: Ah Force - 99 Army- AL Navy - SH Reviewers: Air Force - 84 Navy - MC Army - AV = 9038054 O002839 674 A-A-5935 1 CIVIL COORDINATING AGENCY: GSA - 6FET Preparing activity: (Project 341 5-0258) DLA - GS 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
