AIA/NAS 1690-2012 pdf download HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, HIGH TEMPERATURE, HIGH PRESSURE, FLARED
MATERIAL:
FINISH:
HOSE: POLYTETRAFLUOROETHYLENE, SEAMLESS,SEE PROCUREMENT SPECIFICATION.HOSE REINFORCEMENT (ALL): CRES WIRE, 302 (UNS S30200) OR 304 (UNS S3000) PER QG-W-423ASTM A313/A313M OR ASTM A580/A580M FULL COVERAGE,SEE PROCUREMENTSPECIFICATION.INTERLAYER: IF USED,SHALL BE A MATERIAL OR COVERED WITH ANOTHER MATERIAL WHICH SHALNOT EXTRUDE THROUGH THE HOSE REINFORCEMENT WHEN HOSE ASSEMBLY IS IMPULSEDAND/OR WETTED BY FLUIDS NORMALLY FOUND IN AEROSPACE SYSTEMS.END FITTINGS: CRES,304 (UNS S30400), 321 UNS S32100) OR 347 (UNS S34700) PER OQ–763AMS-QQ-S763,17-4 PH PER AMS5643,OR AM355 PER AMS5743,SEE PROCUREMENTSPECIFICATION.SCUFF GUARD: POLYTETRAFLUOROETHYLENE TUBE，014 TO .057 THICK
CRES PARTS: PASSIVATED,FINISH NUMBER 5.4 OF MIL-STD-171 (ORD)
CODE:
“_”INDICATES NO SCUFF GUARD REQUIRED
“G”IN PLACE OF DASH INDICATES SCUFF GUARD ATTACHED1ST DASH NUMBER:HOSE ASSEMBLY SIZE: SEE TABLEI2ND DASH NUMBER: LENGTH: SEE TABLE II
EXAMPLE OF PART NUMBER:
NAS1690 – 06-31R6
LENGTH (31.6 INCHES)
HOSE ASSEMBLY SIZE (-6 OR 3/8)
SCUFF GUARD (NONE)
BASIC PART NUMBER
NOTES:
REMOVE ALL BURRS AND SHARP EDGES1
DIMENSIONS IN INCHES AND APPLY AFTER FINISH UNLESS OTHERWISE SPECIFIED.
TOLERANCES:NOTED.
HOSE SHALL BE SINGLE PIECE LENGTHNO HOSE SEGMENTS ALLOWED
REDUCTION OF THREAD TOLERANCES ON END FITTING NUT FROM 3B TO 2B DUE TO ASSEMBLING ORTESTING SHALL NOT BE CAUSE FOR REJECTION.A NON-STADARD SWIVEL NU MAY BE USEDPROVIDED THE HEX AND THREAD DIMENSIONS ARE IN ACCORDANCE WITH AN818 AND PROVIDEDTHE NUT CANNOT BE REMOVED FROM THE ASSEMBLY.
END FITTINGS SHALL BE PERMANENTLY ATTACHED TO THE HOSE
END FITTINGS SHALL MATE PART WIH FITTING END IN ACCORDANCE WITH MS33656 AS4395, FORASSEMBLY SIZE SPECIFIED.
SCUFF GUARD. WHEN USED,SHALL COVER THE HOSE REINFORCEMENT TO WITHIN .5 OF THE ENDFITTING，BOTH ENDS.
LEAKAGE SHALL NOT EXCEED 50 CC AIR OR GASEOUS NITROGEN PER LINEAR FOOT PER 15 MINUTESAT OPERATING PRESSURE. IN THE EVENT OF A DISPUTE PARAGRAPH 4.5.5 OF MIL-DTL-26633 SHALLAPPLY
(10)THE ASSEMBLY SHALL BE CAPABLE OF MEETING THE INNER TUBE INTEGRITY REQUIREMENTS OFPARAGRAPH 4.5.6 OF MILDTL-26633

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