A-A-55294A
3.4 Sizes and measurements. The finished caps shall conform to the measurements specified
in Tables IV and V.
TABLE IV. Cap sizes (inches)
Size
Inside cap circumference (+ 1/4 inch tolerance)
6-3/8
20-1/8
6-1/2
20-1/2
6-5/8
20-7/8
6-3/4
21-1/4
6-7/8
21-5/8
7
22
7-1/8
22-3/8
7-1/4
22-3/4
7-3/8
23-1/8
7-1/2
23-1/2
7-5/8
23-7/8
7-3/4
24-1/4
7-7/8
24-3/8
8
25
8-1/8
25-3/8
8-1/4
25-3/4
8-3/8
26-1/8
8-1/2
26-1/2
TABLE V. Cap measurements (inches)
A
B
C
D
E
3-5/8
1-1/8
3-1/2
2-5/8
2-1/8
Tolerance
+ 1/4
+ 1/8
+ 1/4
+ 1/4
+ 1/8
NOTE: Reference Figure 2 for A, B, C, D, and E measurements.
3.5 Patterns. A set of standard patterns to be used to cut working patterns will be furnished
by the Government. The working patterns shall be identical to the Government patterns.
Neither the Government patterns nor the working patterns shall be altered in any way, except
that additional notches for use during construction are allowed on the working patterns. Also,
minor modifications are permitted where necessary when using automatic equipment. These
modifications shall not alter the dimensional, serviceability, or appearance requirements. The
standard patterns provide a seam allowance of 3/8 inch for the joining seams, and 1/4 inch for
all other seams. The out band pattern part may be cut on warp or filling.
4. REGULATORY REQUIREMENTS. 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).
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