AIA/NAS 1637-2011 pdf download HANDLE, LATCHING, INTERNAL & EXTERNAL RELEASE, COMPONENTS & ASSEMBLY
MATERIAL:
HANDLE AND INTEGRAL PARTS – ALUMINUM ALLOY TO MEET STRENGTH REQUIREMENTS LISTEDBELOW.INSERTS – CRES，AUSTENITIC SERIES.SPRINGS – CARBON STEEL PER QQS-640ASTM A682/A682M,MIL-S-46049,QQ-S-698.ORASTM A684/A684M-MUSIC WIRE PER QQ-W470 ASTM A228/A228M.PINS – CRES.OR STEEL，HIGH CARBON,PER MIL-P-10971 NASM10971.
FINISH:
ALUMINUM PARTS – SEMI-GLOSS BLACK EPOXY PAINT,PER MIL-PRF-22750BRUSHED ALUMINUM – BRUSH SATIN FINISH NOMINAL 180 FINE GRIT, SIDES AND FRONT FACESSTROKE DIRECTION PER “A” DIMENSION (LONG AXIS),CLEAR PROTECTIVE COATINGCARBON STEEL PARTS – CADMIUM PLATE PER AMS-QQ-P-416.TYPE , CLASS 3 OR BETTER.CRES PARTS – PASSIVATE BY MMERSION FOR A PERIOD OF 30 MINUTES IN A SOLUTION CONTAINING20%, BY VOLUME, OF NITRIC ACID AT A ROOM TEMPERATURE OF 70 F 5FOLLOWED BYA THOROUGH RINSE IN HOT WATER (IN ACCORDANCE WITH MIL-DTL-14072 FINISH E300)
CODE:
FIRST DASH NUMBER – CONFIGURATION PER SHEET 1FIRST CODE LETTER – FINISH“B”-BLACK EPOXY PAINTpBRUSHED FINISH WITH CLEAR PROTECTIVE COATING
EXAMPLES OF PART NUMBERS:
NAS1637-1B = ALUMINUM ALLOY,LONG HANDLE-INTERIOR RELEASE WITH KEEPERBLACKNAS1637-6B = ALUMINUM ALLOY, LONG HANDLE-EXTERIOR RELEASE WITH KEEPER,BLACKNAS1637-4B = ALUMINUM ALLOY, BLACKSHORT HANDLE-INTERIOR RELEASE (WITHOUT KEEPER)NAS1637-9B = ALUMINUM ALLOY, BLACK, SHORT HANDLE-EXTERIOR RELEASE WITHOUT KEEPER).NAS1637-5P – KEEPER,BRUSHED FINISHCLEAR.
NOTES:
DETAILS OF CONSTRUCTION AND DESIGN CONFIGURATIONS ARE OPTIONAL WITHIN THE LIMITS OFTHIS STANDARD.
LOCKING LEVER IS LIMITED TO A 90° -10/-20° OPEN POSITION AND MUST EXERCISE A STOPPINGACTION (REMAIN OPEN WHEN THRUST AGAINS THE KEEPER PIN) LOCKING LEVER MUST BEACTUATED MANUALLY TO BE RAISED TO A VERTICAL POSITION: AND WHEN BEING ACTUATED IT MUSTENGAGE THE KEEPER PIN AND ADVANCE THE HANDLE .750 INCHES MINIMUM.
WHEN HANDLE ASSEMBLY IS IN LOCKED POSITION ON THE EQUIPMENT,IT MUST BE CAPABLE OFREMAINING LOCKED WHILE UNDERGOING VIBRATIONS OF 5-60 CPS IN ALL THREE PLANES AT ANINTENSITY OF 1.3 GRAVITATIONAL UNITS(LOADING PER /4/ AND UNLOADED)
RELEASE BAR MUST BE CAPABLE OF BEING UNLOCKED BY APPLYING NOMINAL RELEASE PRESSURE ASNOTED IN TABLE 1, ON THE INTERNAL AND/OR EXTERNAL ACTUATOR WHILE SUSTAINING A 100 BFORCE ON THE KEEPER PIN
ADJUSTABLE KEEPER MUST BE CAPABLE OF BEING LOCKED IN ANY POSITION, WITHIN ITS LIMITS,ANDWITHSTAND VIBRATIONS AS STATED IN /3/,WITHOUT BECOMING LOOSE.
RELEASE BAR MUST BE “SPRING LOADED(SPRING OR RESILIENT PAD) TO MOVE OUTWARDS FROMHOUSING WHEN INTERNAL AND/OR EXTERNAL RELEASE ACTUATOR IS OPERATED.THIS WILL PERMITGRASPING RELEASE BAR TO “JACK-OUT” DRAWER (NONIMAL 5°-15 FREE TRAVEL)
DESIGN INFORMATION.
WHEN BLACK FINISH IS SPECIFIED, EXPOSED ENDS OF PINS TO BE “TOUCHED-UP” BLACK
MINIMUM THREAD DEPTH OF LOCKING INSERTS: ONE AND ONE HALF (1-1/2) FULL THREADS TOLOCKING MEDIUM (MINIMUM) LOCKING MEDIUM TO BE ONE (1) FULL THREAD MINIMUM (LOCKINGTORQUE PER NASM25027) AND THREAD EXTENSION TO END OF INSERT TO BE ONE AND ONE HALF(1-1/2) FULL THREADS MINIMUM.APPLICABLE RECOMMENDED INSTALLATION PROCEDURES TO BEFOLLOWED
PINS SHALL NOT EXTEND BEYOND“.570”DIMENSION,ON KEEPER
FOR AIRBORNE APPLICATIONS REQUIRING CONFORMANCE TO AEEC CHARACTERISTICS FORADJUSTABLE COMPENSATING KEEPERSCONSULT SUPPLEMENT 8 OF ARINC 404.

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