Hose
Federal Specification WW-C-621G
WW-C-621G
February 7, 1990
SUPERSEDING
WW-C-621F
April 4, 1983
FEDERAL SPECIFICATION
COUPLING ASSEMBLY, HOSE (FIRE, WOVEN-JACKETED,
RUBBER- OR FABRIC-LINED AND UNLINED)
Comparison of hose stock types
Comparison of hose stock types
| Chemical name | ||||||
| ASTM-SE designation | ||||||
| SAE J14 & SAE J200 | ||||||
| Flame resistance | ||||||
| Petroleum base oils | ||||||
| Diesel fuel | ||||||
| Resistance to gas permeation | ||||||
| Weather | ||||||
| Ozone | Good for cover |
|||||
| Heat | ||||||
| Low temperature | ||||||
| Water-oil emulsions | ||||||
| Water-glycol emulsions | ||||||
| Diesters | ||||||
| Phosphate esters | ||||||
| Phosphate ester based emulsions |
Thread Type Compatibility
In order for two components to fit properly, thread types must be compatible. See the list below for thread types that can be used together.

** We had previously indicated GHT as compatible with 3/4-NH. This was incorrect. Oops... sorry.
