A-A-2131A
October 4, 1983
SUPERSEDING
A-A-2131
April 25, 1983
COMMERCIAL ITEM DESCRIPTION
HOSE ASSEMBLY, NONMETALLIC
(FIRE, 600 LBS. TEST PRESSURE)
The General Services Administration has authorized the
use of this commercial item description.
This description covers high pressure, all synthetic double-jacketed fire hoses, with couplings, for fire protection purposes and shall be furnished with the following styles and sizes, as specified:
Style I – Hypalon coated: yellow, tan or red, as specified
Style II – Uncoated
|
Size |
Inside diameter (inches) |
|
A |
1-1/2 |
|
B |
1-3/4 |
|
C |
2-1/2 |
|
D |
3 |
|
E |
3-1/2 |
|
F |
4 |
Salient characteristics:
Hose length shall be 50-feet or 100-feet, as specified.
Configuration. The assembly shall consist of one male coupling, one female coupling, and one section of hose of specified length.
Hose. Synthetic, woven, double-jacketed, lined, Hypalon impregnated outer jacket (style I) or synthetic, woven, double-jacketed, lined, unimpregnated outer jacket (style II).
Couplings. One threaded male piece with expansion ring and one threaded female piece with swivel section and expansion ring shall be provided. Coupling shall be furnished with rocker lugs. All threads shall be of the NH series, unless otherwise specified. Material of couplings shall be either brass or hardcoated aluminum at the manufacturer’s option, unless otherwise specified. Use of three-part reducing couplings on the 1-3/4 inch and 3-inch hose is permissible. The 1-3/4 inch coupling reduces to 1-1/2 8nch threads and the 3-inch coupling reduces to 2-1/2 inch threads.
Proof (test) pressure – 600 psi
Burst pressure – 900 psi
Conformance. Hose shall meet or exceed the requirements of the National Fire Protection Association (NFPA) Standard 1961.
The issue of NFPA Standard 1961 in effect on the date of the solicitation shall be used to determine compliance with this requirement.
Workmanship. Jacket shall be well, evenly, and firmly woven and as free from unsightly defects, dirt, knots, lumps, and irregularities of twist as is consistent with good manufacturing practice. The waterway surface of the lining shall be free from pitting, corrugations, or other irregularities or imperfections, hose shall be free of defects which may affect appearance or serviceability.
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