A-A-51166C
7. NOTES
7.1 Part or identification number (PIN). The following PIN procedure is for government purposes and does not constitute a requirement for the contractor.
AA51166 - X X X X
Example of reference part number: AA51166 - 1A5D
Class: A - Coarse tooth spacing
B - Medium tooth spacing
C - Fine tooth spacing
D - Extra coarse tooth spacing
Size: (see tables I and II)
Style: A - Right-hand spiral fluting
B - Right-hand spiral fluting with chip breaker
C - Double cut fluting
D - Diamond cut fluting
Type: 1 - Type I (High speed steel)
2 - Type II (Tungsten carbide)
CID number
A-A-51166-1A5D identifies a high speed steel rotary file with right-hand spiral fluting, a shank diameter of 1/4 inch, a cutter head 5/8 inch long with a diameter of 3/4 inch, with 10 to
17 teeth per circumference.
7.2 Sources of documents.
7.2.1 ASTM standards. Copies of ASTM standards may be obtained from ASTM International,
100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959. Electronic copies of ASTM standards may be obtained from https://www.astm.org/.
7.2.2 FAR. The FAR may be obtained from the Superintendent of Documents, P.O. Box
371954, Pittsburgh, PA 15250-7954. Electronic copies of FAR documents may be obtained from https://www.arnet.gov/far/.
7.3 Ordering data. The acquisition order should specify the following:
a. CID document number, revision, and CID PIN. b. Type of rotary files (see 2.1).
c. Style of rotary files (see 2.2). d. Size of rotary files (see 2.3).
e. Cutting head diameter and shank diameter, if different (see 2.3). f. Class of rotary files (see 2.4).
g. Spacing of teeth along the circumference, if different (see 2.4). h. Straight end cut extension, if different (see 3.2.4).
i. Preservation, packing, and marking (see 6.1).
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