1、INCH-FOUND A-A-2 9 3 1 April 1, 1996 SUPERSEDING CCC-R-180 January 21 , 1 992 COMMERCIAL ITEM DESCRIPTION REAMER, HAND, BROWN AND SHARPE TAPER SOCKET The General Services Administration has authorized the use of this Commercial Item Description for procurement of the Type XIV, Classes 1 and 2 reamer
2、s specified in CCC-R-180 for all federal agencies. 1. SCOPE This Commercial Item Description covers reamers used in reaming Brown & Sharpe taper socket s. 2. CLASSIFICATION Class 1 - Straight Fluted. Class 2 - Spiral Fluted. 3. SALIENT CHARACTERISTICS 3.1. Class 1. 3.1.1 Desian. The hand reamer shal
3、l have straight flutes, straight round shank with squared end, and shall be right-hand and ground. The reamer shall be similar to figure 1 (A), and conform to the dimensions of table 1 and the applicable tolerances of table 2 (see 7.2). 3.2 Class 2. 3.2.1 Desian. The hand reamer shall have spiral fl
4、utes, straight round shank with squared end, and shall be left spiral and right-hand cut. The reamer shall be similar to figure 1 (B), and conform to the dimensions of table 1 and the applicable tolerances of table 2 (see 7.2). 3.3 Material. Unless otherwise specified (see 7.2), the reamer shall be
5、made of Molybdenum base types M1 , M2, M7 or M1 O high speed steel. 3.4 Construction. The cutting section shall taper as specified in table 1. The cutting edges shall be properly relieved and the flutes shall provide for chip clearance. Flute spacing shall be in accordance with the manufacturers sta
6、ndard practice. The shank shall be integral or joined to the reamer by welding, and shall be concentric with the cutting edges within 0.001 inch total indicator reading (tir) as measured between centers. The chamfer on the cutting end of the reamer is optional. Beneficial comments, recommendations,
7、additions, clarification, etc. and any data which may improve this document should be sent to: General Services Administration, Federal Supply Service, Tools and Appliances Commodity Center (6FETE-CO), Washinqton, DC 20406. i FSC 51 1 O Provided by IHSNot for ResaleNo reproduction or networking perm
8、itted without license from IHS-,-,-A-A-2931 9999974 0370407 252 Eiement Length Overall (A) Length of Flute (8) A-A-293 1 Range Size Number Tolerances 1 to 7 incl. 8 to 10 incl. 1 to 7 incl. +/- 1 /i 6 +/- 3/32 +/- 1/16 3.5 Hardness. The full length of the cutting edges of the reamer shall be hardene
9、d and tempered to a Rockwell hardness value from C61 to C67. When required to be tested, the reamer shall be tested for hardness in accordance with ASTM El 8. Length of Square (O Diameter of Shank (Dl I 1 I .- B 8 to 1 O incl. +/- 3/32 1 to 9 incl. +/- 1/32 10 +/- 1 /i 6 1 to 1 O incl. - 0.0005 to F
10、igure 1. Brown & Sharpe Taper Hand Reamer Square Shank Size Taper No. of h Length Dia. of Per Flutes Size of Square Table 1. 0.002 1 to 3 incl. - 0.004 4 to 9 incl. - 0.006 10 -.0.008 Table 2. 3.6 Performance. The reamer shall cut freely and produce smooth and accurate holes when subjected to hand r
11、eaming a minimum of 25 holes in a steel plate of at least 1/2 inch thickness. The testing steel shall conform to FED-STD-66, AlSi Number 41 40 or 41 50, and shall have a Brinell hardness value from 235 to 285. The holes shall be prepared with a taper approximating that of the reamer taper. 2 Provide
12、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-293 1 e 3.7 WorkmanshiD. Details of workmanship shall be in accordance with the best commercial standards and practices. Paints, coatings, platings, and finishes shall be smooth adherent, continuous, and n
13、ot stained or discolored. External surfaces shall be free of tool and gouge marks, nicks, or other surface imperfections. The item shall be free from manufacturing workmanship defects (e.g. sharp or rough external edges, corners or surfaces) and material workmanship defects (e.g., pits, rips, fins,
14、burrs, tears nodules, cracks, blisters) which may adversely impact the items serviceability, durability, safety or appearance. 3.8 Identification markinq. The reamer shall be marked with the manufactures name or identifying symbol, and the state or country of manufacture, unless otherwise specified.
15、 All identification markings shall be engraved, etched, molded, or indented directly on the items surface in such a manner that it remains clearly legible throughout the life of the item. The reamer shall be marked with the words “High Speed“ or the abbreviation HS“. 4. REG U LATO RY REOUI REM ENTS
16、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). 4.2 Metric Droducts. Products manufactured to metric dimensions will be considered on an equal
17、basis with those manufactured using inch-pound units, provided they fall within the toierances specified (using conversion tables contained in the latest revision of Federal Standard 376) and all other requirements of this document are met. if a product is manufactured to metric dimensions and those
18、 dimensions exceed the tolerances specified in the inch-pound units, a request should be made to the Contracting Officer to determine if the product is acceptable. 5. QUALIN ASSURANCE PROVISIONS 5.1 Contractor certification. The contractor shall provide certification and maintain substantiating evid
19、ence that all items being offered for acceptance meet the requirements of this Commercial Item Description and conform to the manufacturers drawings, specifications, standards, and quality assurance practices. The Government reserves the right to require proof of such conformance prior to first deli
20、very and thereafter as provided for under the provisions of the contract. 5.2 Resoonsibilitv for insoection. Unless otherwise specified, the contractor is responsible for the performance of all inspection requirements and may use any commercial facilities (including the contractors own facilities) s
21、uitable for performance of the inspection requirements, unless disapproved by the Government. The Government reserves the right to perform any of the inspections deemed necessary to assure the item conforms to the specified requirements. 5.3 Bid sarnrilek). When a bid sample requirement is specified
22、 in the solicitation, the bid sample($ shall be inspected for all salient characteristics. A failure of any bid sample to meet the salient characteristics shall be cause for rejection. 5.4 First article samoleb). When a first article requirement is specified in the contract, the first article sample
23、(s) shall be inspected for all salient characteristics. A failure of any first article sample to meet the salient characteristics shall be cause for rejection. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-2931 9979974 0170409 025 I A-A-293
24、1 6. PACKAGING Requirements for preservation, packing and marking shall be as specified in the contract or order. 7. NOTES (This section contains information of a general or explanatory nature that is not mandatory.) 7.1 Addresses for obtainina coDies of reference documents. Federal SDecifications:
25、Federal Supply Service Bureau, Specification Section, Suite 81 00, 470 LEnfant Plaza, SW, Washington, DC, 20407. Federal Acauisition Reaulations (FAR): Government Printing Office Superintendent of Documents, Washington, DC 20401 -9371. ANWASQC 21.4: American Society for Quality Control, PO Box 3005,
26、 61 1 E. Wisconsin Ave., Milwaukee, WI 43201 -4606. ASME 694.2: the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 1 O01 7. ASTM El 8: American Society for Testing and Materials, 1 91 6 Race St., Philadelphia, PA 191 03. 7.2 Qrderina data. Purchasers should select the p
27、referred options permitted herein and shall include the following information in procurement documents: (a) Title, number, and date of this Commercial Item Description. (b) Class and taper number required. (c) Type of material required if other than specified. (d) When applicable, the appropriate NS
28、N. (e) If bid samples are required and the number of samples required. (9 if first article samples are required and the number of samples required. (9) If lot sampling inspections are required and the applicable lot sampling requirements. For example: SamDlina for insDection. Sampling for inspection
29、 (both examinations and testing) shall be in accordance with ANSI/ASQC Z1.4. Examinations. Each sample tool shall be examined for all salient characteristics. The Inspection Level shall be 5-3 with an Acceptable quality level (AQL) of 2.5 percent defective. Testinq. Each sample tool shall be tested
30、for all salient characteristics. The Inspection Level for the hardness test shall be S-2 with an Acceptable quality level (AQL) of 2.5 percent defective. The Inspection Levei for the performance test shall be S-2 with an Acceptable quality level (AQL) of 4.0 percent defective. (h) What preservation,
31、 packaging, and marking are required. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3 Reamer Size NSN: 5 1 10-00- 1 Reamer Size 1 186-4203 i 6 7 7 A-A-293 1 NSN: 5 1 10-00- 186-4208 7.3 National Stock Numbers (NSNs). NSNs shown may not be indicat
32、ive associated with this Ci D: L I I I 3 I 1864205 8 5 I 186-4207 10 4 186-4206 9 of all possible NSNs 1 8642 1 O 186-421 1 186-4212 Class 1 : Reamer Size “SN: 5 1 1 0-00- Reamer Size 1 6 2 186-4204 7 a 1 P NSN: 5 1 10-00- 186-4209 4 1 9 I Military interests: None: DoD has no registered interest in revisions and notices to this Commercial Item Description until further notice. Preparing Activity CSA * FSS 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
