OO-M-340 Milling, Grinding, Drilling, And Slotting AttachmentThis specification covers an electric motor driven attachment for milling, grinding, drilling, slotting, boring, gear cutting, thread milling, and keyseating operations. The attachment is adaptable for mounting on a lathe, planer, or boring mill. This attachment may also be used as a portable self-contained unit suitable for bench mounting when provided with a feed table.

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OO-M-340F

TABLE VII. Test requirements.

Test	Test paragraph
Motor	4.6.1.1
Milling	4.6.1.2
Woodruff keyseat cutting with basic attachment	3.5.3.1 and 4.6.1.2.1
Keyway cutting with basic attachment	3.5.3.2 and 4.6.1.2.2
Keyway cutting with 90 degree universal milling head	3.8.1 and 4.6.1.2.3
Keyway cutting with the high speed end milling and drilling head	3.8.2 and 4.6.1.2.4
Performance test of external grinder	3.8.3 and 4.6.1.3.1
Performance test of internal grinder	3.8.4 and 4.6.1.3.2
Performance test of deep-hole grinder	3.8.5 and 4.6.1.3.3
Performance of dividing head	3.8.6 and 4.6.1.4
Performance test of internal keyseater and slotter	3.8.7 and 4.6.1.5
Performance of feed table	3.8.8 and 4.6.1.6

4.4 Quality conformance inspection. Unless otherwise specified (see 6.2), quality conformance inspection shall be applied to production items offered for acceptance under the contract and shall consist of (a) through (d) below. A sample of the attachments shall be selected in accordance with MIL-STD-1916 inspection level I. Failure of any attachment to pass an examination or test shall be cause for rejection of the item.

a. Product examination (see 4.5). b. Motor tests (see 4.6.1.1).

c. Milling test (see 4.6.1.2).

d. Woodruff keyseat cutting test with basic attachment (see 4.6.1.2.1).

4.5 Product examination. Visually, dimensionally, and manually examine each attachment to determine conformance with the requirements of 3.2 through 3.5.2 and 3.6 through 3.11. Visual examination shall include verification of completeness of manufacture and assembly, conformance to the specified standards, adequacy of markings, proper cleaning, and freedom from the identified defects. Dimensional examination includes dimensions as specified. Manual examination shall include the operation of movable parts by hand to ensure proper functioning. The examination provisions may be applied at the earliest practical point in manufacture at which it is feasible to inspect for acceptance without risk of change in the characteristic by subsequent operations. Failure

of the contractor to provide objective evidence that the attachment and its components have passed the examinations prescribed for them by the contractor's inspection system shall be cause for rejection. A certificate of conformance may be accepted in lieu of the visual or manual requirements of 3.2.4,

3.2.5.1, 3.4.1, 3.4.3, and 3.4.5. In addition, failure of the contractor to provide objective evidence that all parts are manufactured to definite standards, clearances, and tolerances so that no replacement part will degrade the form, fit, or function of the end item (see 3.4.5) shall be cause for rejection.