MIL-DTL-1213F
3.2.3.3.3 Metering device. The grease cup shall be provided with a preformed, flexible non-metallic disk
which, under pressure of the grease, assumes the shape of the cylinder. The return action of the disk shall
force the grease out. The grease shall be metered either by a metering ball attached to the disk and sliding in
the tapered bore of the housing or by an adjustable device extending through the side of the housing into the
bore.
3.3 Threads. Thread dimensions shall conform to FED-STD-H28/1 - Screw Thread Standards for Federal
Services (section 1) Nomenclature, Definitions and Letter Symbols for Screw Threads and
FED-STD-H28/7 - Screw Thread Standards for Federal Services (section 7) Pipe Threads, General Purpose.
3.4 Wrench flats. Grease cups shall be provided with wrench flats on the shanks or bases that will fit a
standard-size open-end wrench.
3.5 Surface finishes. The exterior and interior surfaces shall be smooth-finished to normal manufacturing
standards.
3.6 Component parts. The component parts of the cups shall be so constructed such that the cups shall
show no leakage (see 4.7.1).
3.7 Dimensions and tolerances. The dimensions and tolerances shall be as specified in MS35758 and
MS 35759.
3.8 Protective coating. The cups shall be plated in accordance with instructions in MS35758 and
MS35759.
3.9 Grease capacity. Capacity shall be as specified in MS35758 and MS35759.
3.10 Workmanship. The grease cups shall be manufactured in accordance with this specification, pertinent
standards and best commercial practice. The component parts of the grease cups shall have no pits, rust,
loose scale, chips, scraps, splits, cracks, burrs, slivers, foreign material or other defects that would affect
proper operation.
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are classified as follows:
a. First article inspection (see 4.5).
b. Conformance inspection (see 4.6).
4.2 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance
with the test conditions specified in accordance with the applicable test method referenced in the test
procedures.
4.3 Responsibility for compliance. All items shall meet all requirements of sections 3, 4, and 5. The
inspection set forth in this specification shall become a part of the contractor's overall inspection system or
quality program. The absence of any inspection requirements in the specification shall not relieve the
contractor of the responsibility of ensuring that all products or supplies submitted to the Government for
acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing
operations, is an acceptable practice to ascertain conformance to requirements, however, this does not
authorize submission of known defective material, either indicated or actual, nor does it commit the
Government to accept defective material.
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