AIA/NAS 1691-2012 pdf download HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, HIGH TEMPERATURE, HIGH PRESSURE, FLARELESS
MATERIAL:
HOSE; TETRAFLUOROETHYLENE, SEAMLESS, SEE PROCUREMENT SPECIFICATION.
HOSE REINFORCEMENT (ALL); CRES WIRE, 302 (UNS S30200) OR 304 (UNS S30400) PER QQ-W-423 ASTM A31 3/A31 3M OR ASTM A580/A580M FULL COVERAGE, SEE PROCUREMENT SPECIFICATION.
INTERLAYER; IF USED, SHALL BE A MATERIAL OR COVERED WITH A MATERIAL WHICH SHALL NOT EXTRUDE THROUGH THE HOSE REINFORCEMENT WHEN HOSE ASSEMBLY IS IMPULSED AND/OR WETTED BY FLUIDS NORMALLY FOUND IN AEROSPACE SYSTEMS.
END FITTINGS; CRES, 304 (UNS S30400), 321 (UNS S321 00) OR 347 (UNS S34700) QQ-S-763 AMS-QQ-S-763, SEE PROCUREMENT SPECIFICATION.
SCUFF GUARD; POLYTETRAFLUOROETHYLENE TUBE, .01 4 TO .057 THICK.
FINISH:
CRES PARTS; PASSIVATED, FINISH NO. 5.4 OF MIL-STD-1 71 (ORD).
CODE:
“–” INDICATES NO SCUFF GUARD REQUIRED
“G” INDICATES SCUFF GUARD ATTACHED
1 ST DASH NUMBER: HOSE ASSEMBLY SIZE; SEE TABLE I.
2ND DASH NUMBER: LENGTH; SEE TABLE II.
EXAMPLE OF PART NUMBER:
NAS1 691 – 06-31 R6
LENGTH (31 .6 INCHES)
HOSE ASSEMBLY SIZE (-6 OR 3/8).
SCUFF GUARD (NONE)
BASIC PART NUMBER
NOTES:
(1 ) REMOVE ALL BURRS AND SHARP EDGES.
(2) DIMENSIONS IN INCHES AND APPLY AFTER FINISH UNLESS OTHERWISE SPECIFIED.
(3) TOLERANCES: NOTED.
(4) HOSE SHALL BE SINGLE PIECE LENGTH, NO HOSE SEGMENTS ALLOWED.
/5/ DIMENSIONS “L” AND “C” SHALL BE MEASURED FROM THE “ØB” GAGE AS SPECIFIED IN MS3351 4 AS3351 4 FOR ASSEMBLY SIZE SPECIFIED.

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