A-A-50552
A-A-50552 = Commercial Item Description Number
XXX = Type
X = Class
X = Style
X = Kind
7.1.1 Types, classes, styles and kinds. The types, classes, style and kinds of box connectors, brushings, coupling, adapters and clamps are identified by numeric alpha characters as identified in paragraph 2. The following is an example of the PIN for a Type I electrical box connector, class 2, style H, kind g:
A-A-50552 – 00I – 2 – H – g
The following is an example of the PIN for Type V clamp, class 7, style S.
A-A-50552 – 00V – 7 – S
7.2 Source of documents.
7.2.1 NEMA Standards are available from National Electrical Manufacturers Association (NEMA), 2101 L Street, N.W., Washington D.C. 20037.
7.2.2 UL Standards are available from Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096.
7.2.3 ASTM Standards are available from American Society for Testing Materials, 1961 Race Street, Philadelphia, PA 19103.
7.3 Ordering data.
a) Title, number, and date of this description.
b) Type, class, style, kind and size required.
b) Specify special packaging requirements.
c) Contracting officer may request proof of certification of commercial item and UL certification prior to first contract delivery.
7.4 Intended use. The fittings covered by this description are intended for use as follows:
Type I – For attaching cable or flexible conduit to an outlet box.
Type II – To provide protection for the cable insulation at the point on an armored cable where the armor terminates.
Type III - To couple two sections of the same size flexible conduit.
Type IV - For connecting armored cable or flexible conduit to rigid conduit or electrical metallic tubing.
Type V - To provide means for connecting a ground wire, bare armored or insulated, to a grounded piping system.
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