380 HOSE, COUPLINGS, AND FITTINGS 



being of the same style. The figure indicates the size of the 

 hose or pipe, in quarters of an inch; a 5 hose is 5X i or IJ-in. 

 hose; a 4 hose is a 1-in. hose. 



Nipples are designated by two dimensions, as If'Xli" 

 nipple. The first dimension is the inside diameter of the hose 

 for which the nipple is intended; the second dimension is the 

 size of the pipe. A cross-section of hose, showing its construc- 

 tion is shown in Fig. 1, in Fig. 2 is a diagrammatic view of the 

 FP coupling. 



HOSE AND COUPLINGS 



HOSE AND FP-5 COUPLING 



The hose and FP-5 coupling is the standard for brake-pipe 

 connection on freight cars; it is also furnished, when ordered, 

 for locomotives having 1 J-in. piping. The piece and reference 

 numbers are given in the accompanying list. 



PC. No. Ref. No. Name of Part 



28,393 lf"X22" hose with FP-5 coupling and 



IJ-in. nipple, complete, per pair. 

 3,056 2 FP-5 hose coupling, complete, includes 3 



per pair. 

 3,279 3 Hose-coupling gasket. 



2.110 4 If'Xli" threaded hose nipple. 



26,379 Galvanized annealed steel clamp, com- 



plete for l|-in. hose, includes 5 and 6. 

 26,378 5 Galvanized annealed steel clamp, only for 



If -in. hose. 



4,866 6 Hose -clamp bolt and nut. 

 2.463 7 lf'X22" hose. 



HOSE AND FP-4 COUPLING 



The hose and FP-4 coupling is the standard for brake-pipe 

 connection on passenger cars, and on locomotives having 1-in. 

 piping. The piece and reference numbers are given in the 

 accompanying list. 



PC. No. Ref. No. Name of Part 



28,511 H"X22" hose with FP-4 coupling and 



IJ-in. nipple, complete, per pair. 

 3,058 2 FP-4 hose coupling, complete, includes 3, 



per pair. 

 3,279 3 Hose-coupling gasket. 



2.111 4 1 i" X 1 i" threaded hose nipple. 



