A-A-50560 Pumps, Centrifugal, Water Circulating, Electric-Motor-Driven No S/S DocumentThis Commercial Item Description CID covers electric-motor-driven, centrifugal, water circulating pumps for use in hot water heating systems and service water distribution systems. The pumps have in-line connections to permit unsupported installation of the units in a straight run of piping. Pumps covered by this document are intended for use as circulators in forced hot water heating systems, and in service water distribution systems, where the water temperature for either application does not exceed 225 Degrees F 107 degrees C.

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A-A-50560

7.2  Source of documents.

7.2.1  NEMA Standards are available from the National Electrical Manufacturers Association,

2101 L Street, N.W., Suite 300, Washington, DC  20037.

7.2.2  NFPA Standards are available from the National Fire Protection Association, Batterymarch

Park, Quincy, MA  02269.

7.2.3  The Federal Acquisition Regulation (FAR) may be obtained from the Superintendent of

Documents, U.S. Government Printing Office, Washington, DC  20402.

7.3  Ordering data:  Acquisition documents should specify the following:

a.   Type, size, and service required (see 2.)

b.   Capacity and total dynamic head required (see 3.3).

7.4  Subject term (key word) listing.

Circulator pump

Service water distribution system

Hot water heating system

In-line pump

7.5  National Stock Numbers (NSNs).  The following is a list of NSNs assigned which correspond to this CID.  The list may not be indicative of all possible NSNs associated with the CID.

MILITARY INTERESTS:                             CIVIL AGENCY COORDINATING ACTIVITY:

Custodian        GSA - FSS Army - AT

Navy - YD1                                                          PREPARING ACTIVITY:

Review Activity                                                          Navy - YD1

DLA - CS

(Project 4320-0006)

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