MIL-B-21518A (Wep)
REQUIREMENTS
3.
Description - The bellows assembly is a flex-
3.1
ible, corrugated neoprene tube with a static length of 9
inches, suitably restrained and reinforced by metal rings,
and fastened to a metal mounting ring at each end.
General Requirements
3.2
Preproduction Sample - Unless otherwise spec-
3.2.1
ified in the contract or order, preproduction samples of
the flexible-bellows assembly shall be manufactured using
the methods and procedures proposed for the production lot.
These samples will be tested as specified in Section 4 herein
and are for the purpose of determining that the production
item meets the requirements of this specification. At the
discretion of' the procuring agency, the requirement for the
preproduction sample may be waived and shall then be satis-
fied by substitution of a production unit chosen at random
by the Government Inspector.
Materials - Unless otherwise specified in the
3.2.2
contract, requisition~ or order, all materials and purchased
parts entering into the final assembly of the flexible-
bellows assembly shall conform strictly to the detailed
requirements indicated on the drawings and specifications
listed in BuWep LD 512273 or Dwg 2024860.
Finishes, Coatings, Construction, and
3.2.3
Dimensions - Finishes, Coatings, construction, and dimen-
sions for the flexible-bellows assembly shall be in accord-
ance with the applicable drawings, specifications, and
publications listed in BuWep LD 512273 or Dwg 2024860.
Marking - Marking of assemblies, subassemblies,
3.2.4
and parts shall be in accordance with the applicable drawings
listed in BuWep LD 512273 or Dwg 2024860.
Interchangeability - Individual assemblies
3.2.5
and/or piece parts of assemblies fabricated in agreement
with their applicable drawings and specifications shall be
interchangeable with like numbered parts.
-3-
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