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|  MIL-S-8959(ASG)
Each hydraulic spring shall be marked for
)
3.6 Identification of product .-
identification in, accordance with MIL-STD-130, and shall include, as a minimum, the
following:
HYDRAULIC SPRING
Manufacturer's part No.
Manufacture's serial No.
Servicing fluid
Charging pressure or preload
Class of unit
Decalcomanias shall not be considered as permanent marking.
3.7 Workmanship.- All details of workmanship shall be of sufficient quality
to ensure proper operation and service life.
QUALITY ASSURANCE PROVISIONS
4.
4.1 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
utilise 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
specification where such inspections are deemed necessary to assure supplies and serv-
ices conform to prescribed requirments.
4.2 Classification of inspections.- The examining and testing of the hydraulic
springs shall be classified as:
`,)
(a) Preproduction inspections
(4.3)
(b) Quality conformance inspections (4.4)
4.3 Preproduction inspections, -
4.3.1 Sampling. - Unless otherwise specified (see 6.2 ), two sample hydrailic
springs shall be prepared to the tolerence COnditions specified in 4.3.1. and
4.3.1.2. In case of waiver of the adverse tolerance samples, tests shall be con-
ducted using representative samples of the production item, and the test report
prepared in accordance with MIL-STD-831, shall analyze the effects of adverse toler-
ance conditions.
4.3,1.1 Specimen No. 1- This specimen shall be assembled of parts which have
been selected to provide that the clearances, with regard to diametral tolerances
between moving and nonmoving members conducive to malfunctioning at extreme tempera-
tures, will not exceed 110 percent of the minimum clearance permitted by the manu-
facturer's drawings. Lapped or selectively fitted parts or seal elements need not be
made to adverse limits.
4.3.1.2 Specimen No. 2.- This specimen shall be assembled of parts which have
been selected to provide that the clearances , with regard to linear and diametral
tolerance between roving members conducive to malfunctioning as a result of wear
associated with prolonged operation, till be not less 90 percent of the maximum
permitted by the manufacturers drawings. Lapped or selectively fitted parts or seal
elements need not be made to adverse limits.
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