M)L‐DTL‐
C
requirements of this specification. Examination and tests shall be as specified in Section and shall be
subject to surveillance and approval by the Government see . .
. Material. Material shall be as specified herein. When specified see . , items which are listed in the
current Fire Protection Equipment List of the Underwriters Laboratories, )nc. shall be considered as meeting
the material requirements of this specification. Materials not specified shall be selected by the contractor
and shall be subject to all provisions of this specification see . . )t is encouraged that recycled material be
used when practical as long as it meets the requirements of this specification.
. . Malleable cast iron. Malleable iron castings shall conform to ASTM A /A M, grade optional.
. . Cast aluminum. Aluminum castings shall conform to ASTM B /B M, Alloy
. , Condition T
or Alloy
. , Condition T or Alloy
. .
. . . Extruded aluminum. Extruded aluminum shall conform to Alloy
‐T or
‐T .
. . . Forged aluminum. Forged aluminum shall conform to Alloy
‐T .
. . . Anodic coatings. All aluminum parts shall be protected by a hard anodic coating conforming to
Type ))), Class of M)L‐A‐
. All surfaces normally painted shall be painted in accordance with the
manufacturer's standard practice.
. . Brass.
. . . Brass bars. Brass bars shall conform to ASTM B /B M.
. . . Drop forged brass. Drop forged brass shall conform to ASTM B
/B
M, Copper Alloy UNS No.
C
.
. . . Cast brass. Brass castings shall conform to ASTM B
, Copper Alloy UNS No. C
or C
.
. Rubber gaskets. Gaskets conforming to NFPA
shall be furnished with each connection having
internal threads.
. Threads. All threads shall conform to FED‐STD‐( .
. Performance. The connections shall show no evidence of distortion or damage that will affect the
serviceability of the connections when subjected to a hydrostatic test pressure of ,
psig.
. Plating. All iron surfaces, including threaded and sliding surfaces, shall be cadmium plated in
accordance with SAE‐AMS‐QQ‐P‐
, Type ), Class .
. . Unless otherwise specified, all N( National (ose Connection shall be chromium plated.
. )dentification marking, The connections shall be identified in accordance with the manufacturers
standard practices.
. Type X))), Siamese connection, pipe to hose. Type X))) connection shall have one external threaded
end and two internal threaded swivel ends with rocker lugs and shall be similar to Drawing
E
and
Figure .
. Type X)V, Siamese connection, fire hose.
6
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