NPFC - A-A-52043
PARALLEL RULERS (ROLLING)
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| Organization: | NPFC |
| Publication Date: | 11 March 1992 |
| Status: | active |
| Page Count: | 3 |
scope:
The General Services Administration has authorized the use of this commercial item description in preference to Military Specification MIL-P-3631.
This description covers rolling parallel rulers. The roller assembly consists of an axle, two rollers, and two bearing standards near the end of the base. The axle, suspended between the standards, is free to rotate. The attached rollers, one at each end of the axle, turn with the axle and protrude slightly below the base. The rollers are knurled, scored, or grooved to prevent slipping when the ruler is guided over a drafting surface.
Document History
September 27, 2001
PARALLEL RULERS (ROLLING)
A description is not available for this item.
A-A-52043
March 11, 1992
PARALLEL RULERS (ROLLING)
The General Services Administration has authorized the use of this commercial item description in preference to Military Specification MIL-P-3631.
This description covers rolling parallel rulers....