3.4.12 Humidity conditions. The engine shall perform as specified herein under relative
humidity conditions as low as 5% at a temperature of 125°F and as high as 100% at all
temperatures from -25 to +85°F (see 188.8.131.52).
3.4.13 Steam and water jet cleaning. Engine and components shall withstand cleaning
specified in 184.108.40.206 without deterioration of seals or hose, leakage past seals or gaskets, or other
defects. Paint removal shall not be considered a deficiency (see 220.127.116.11).
3.4.14 Engine interchangeability. Engine shall install with no modifications to the engine,
vehicle or vehicle components (see 18.104.22.168).
3.5 Exterior surface treatment. All exposed exterior surfaces of the engine and its
components shall be cleaned, and painted or treated for corrosion resistance as specified on the
applicable drawings or equivalent, or if not so specified, in accordance with the manufacturer's
standard practice (see 4.5.2).
3.6 Identification marking. Engine shall be marked with permanent, legible characters
and shall be suitable to withstand the environmental requirements specified herein. The engine
shall be marked with the National Stock Number (NSN), the manufacturer's name and part
number (see 4.5.2).
3.7 Workmanship. The workmanship shall be such quality as to assure that engines
procured under contract meet all requirements specified herein. The engines produced shall be
free of any defects or safety hazards which affect its performance or serviceability (see 4.5.2).
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.2).
b. Conformance inspections (see 4.3).
4.2 First article inspection. When specified (see 6.2), first article inspections shall be
performed on preproduction or initial production samples as specified when a first article sample
is required (see 3.1). This inspection shall include the examinations of 4.4 (see table I) and the
applicable tests of 22.214.171.124 through 126.96.36.199 (see table II).
4.2.1 Preproduction inspection. When specified (see 6.2), first article preproduction
inspection shall be performed on 2 engines. This inspection shall include the examinations of 4.4
(see table I) and the applicable tests of 188.8.131.52 through 184.108.40.206 (see table II).
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