A-A-2661
A. Resilience Test (Washing)
The brush shall be washed in warm (60° - 900 F) tap water. After washing, the excess water shall be shook from the bristles. The brush shall be hung by the handle and air dried at room temperature (60° - 800 F): After drying, there shall be no evidence of flaring or fraying.
B. Bristle Test. Individual strands of bristle shall be held between the thumb and forefinger and pulled until breaking. The setting material used, shall secure the bristles to the setting compound until this breakage occurs. A random sampling of (5) bristles across the brush shall be tested. If bristle pull out occurs before bristle breakage, then the brueh fails the teet requirements.
3. Quality Assurance
Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the government. The Government reserves the right to perform any of the inspections set forth in the Commercial Item Description, where such inspections are deemed necessary to assure that supplies and services conform to the prescribed requirements.
Sampling and Examination. Each lot of brushes shall be inspected for conformance to the requirements herein. Sampling for inspection shall be in accordance with MIL-STd-105 using the plans specified below.
A. Sampling for visual examination - Inspection Level S-4 with an Acceptable Quality Level (AQL) of 4.0 percent defective. The sample unit shall be one brush.
B. Sampling for dimensional examination - Inspection Level S-1 with an Acceptable Quality Level (AQL) of 2.5 percent defective. The sample unit shall be one brush.
C. Sampling for testing - Inspection Level S-2 with an Acceptable Quality Level (AQL) of 4.0 percent defective. The sample unit shall be one brush.
D. Packaging, Packing, and Marking - Inspection Level S-2 with an AQL of 4.0 percent defective. The sample unit shall be one fully prepared shipping container.
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