S9407-AB-HBK-010 Datasheet, PDF (46/276 Pages) Glenair, Inc. – HANDBOOK OF SHIPBOARD ELECTROMAGNETIC SHIELDING PRACTICES

S9407-AB-HBK-010, Rev. 2
Section 4
GR2000-SERIES FITTINGS FOR FLEXIBLE CONDUIT (BRAZE-ON TYPE)
4.1 BACKGROUND
The original specification and drawings for the GR2000-Series fittings appeared in appendix 2
and section 5, respectively, of NAVSHIPS 0967-283-5010, dated 15 October 1969. These original
fittings were designed to fit the flexible shielding conduit described in appendix 1 of the same
document which did not specify a standard outside diameter dimension for each size of conduit. As a
result, the outside diameter varied with each manufacturer, thus requiring several sizes of fitting to
accommodate each nominal size of conduit.
4.2 SCOPE
This specification describes GR2000-Series transition fittings and accessory fittings to be
used on the flexible metal shielding conduit specified in appendix D, in which the dimension of the
outside diameter for each nominal size of conduit is standardized.
The use of the GR2000-Series or the RP2000-Series fittings (described in section 5) is
optional. However, for most installations the RP2000-Series fittings are preferred because they
require no brazing for installation on the conduit, and a greater selection of adapters is available.
4.3 APPLICABLE DOCUMENTS
4.3.1
Issues of Documents
The following documents, of the issue in effect on date of invitation for bids or request for
proposal, form a part of this specification to the extent specified herein.
SPECIFICATIONS
Federal
QQ-B-650
Brazing Alloy, Copper, Copper-Zinc,
and Copper Phosphorous
QQ-P-35
Passivation Treatments for
Corrosion-Resisting Steel
QQ-P-416
Plating, Cadmium (Electrodeposited)
QQ-S-763
Steel Bars, Wire, Shapes, and Forgings,
Corrosion-Resisting
Military
MIL-P-5516
Packing, Preformed, Petroleum Hydraulic
Fuid Resistant, 160:F
4-1