A-A-52043 Parallel Rulers (Rolling)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 areknurled, scored, or grooved to prevent slipping when the ruler is guided over a drafting surface.

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A-A-52043

Certification of commercial item. The contractor shall certify that the product offered to the Government meets the salient characteristics of this description and that the product conforms to the producer’s own drawings, specifications, standards, and quality assurance practices and is the same product as the manufacturer’s current product offered by the contractor in the commercial marketplace for at least one year preceding the solicitation. The Government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract.

Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, providing they fall within the tolerance specified using conversion tables contained in the latest revision of Federal Standard No. 376, and all other requirements of this document are met.

If a product is manufactured to metric dimensions and those 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.

The contracting officer has the option of accepting or rejecting the product.

Regulatory requirements. In accordance with federal Acquisition Regulation, section 23.403, the Government’s policy is to acquire items composed of the highest percentage of recovered materials practicable, consistent with maintaining a satisfactory level of competition without adversely affecting performance requirements or exposing the supplier’s employees to undue hazards from the recovered materials.

Preservation, packing, and marking.  Preservation, packing, and marking shall be as specified in the contract or order.

Quality assurance: The parallel rulers (rolling) shall be examined for the following defects. Presence of one or more defects shall be cause for rejection.

1. Design not as specified.

2. Classification not as specified.

3. Material not as specified.

4. Surface and edges not as specified.

CID based part identification number: The following part identification numbering procedure is for Government purposes and does not constitute a requirement for the contractor.

Part or identifying number (PIN): The PIN to be used for parallel rulers acquired to this commercial item description are created as follows: