AIA/NAS 1803-2011 pdf download NUT, SELF-LOCKING, PLATE, TWO LUG, FLOATING, SPRING LOADED
CODE LETTER “C”:
NUT, CHANNEL AND BASKET:
CADMIUM PLATE PER AMS-QQ-P-41 6, TYPE II, CLASS 2.
EMBRITTLEMENT TEST PER AMS-QQ-P-41 6 DOES NOT APPLY.
SPRING:
PASSIVATE PER AMS2700.
LUBRICATION:
DRY FILM LUBRICANT ON ALL PARTS, EXCEPT OPTIONAL ON CHANNEL, MEETING THE REQUIREMENTS OF NASM25027, AND HYDRAULIC FLUID RESISTANCE WHEN TESTED PER METHOD 7001 OF FEDERAL TEST METHOD STANDARD NO. 791 , USING AS1 241 PHOSPHATE ESTER HYDRAULIC FLUIDS.
CODE: ADD “A” BETWEEN FIRST AND SECOND DASH NUMBERS FOR NUT WITH DOUBLE C’BORE.
DO NOT USE WITH CODE “B”.
ADD “B” BETWEEN FIRST AND SECOND DASH NUMBERS FOR NUT WITH SINGLE CBORE.
DO NOT USE WITH CODE “A”.
ADD “C” AFTER SECOND DASH NUMBER FOR NUT PLATE WITH CADMIUM PLATED NUT ELEMENT,CHANNEL AND BASKET.
NO CODE LETTER AFTER SECOND DASH NUMBER DESIGNATES NUT PLATE WITH PASSIVATED SPRING,CHANNEL AND BASKET.
FIRST DASH NUMBER INDICATES NOMINAL THREAD SIZE IN .0625 INCREMENTS.
SECOND DASH NUMBER INDICATES STRUCTURE THICKNESS RANGE ON WHICH THE NUT PLATE MAY BE INSTALLED (SEE TABLE).
EXAMPLE OF PART NUMBERS:
NAS1 803-3 A 2 C
NUT PLATE DATA, SEE CODE SECTION
SECOND DASH NUMBER (STRUCTURE THICKNESS) FROM TABLE
C’BORE CODE, SEE CODE SECTION
FIRST DASH NUMBER (NOMINAL THREAD SIZE IN .0625
INCREMENTS) FROM TABLE
BASIC NUMBER
NAS1 803-3A2 = NUT PLATE, .1 900-32 THREAD, DOUBLE C’BORE, FOR .040-.049 STRUCTURE THICKNESS, PASSIVATED BASKET.
NAS1 803-3B2 = NUT PLATE, .1900-32 THREAD, SINGLE C’BORE, FOR .040-.049 STRUCTURE THICKNESS, PASSIVATED BASKET.
NAS1 803-3A2C = NUT PLATE, .1 900-32 THREAD, DOUBLE C’BORE FOR .040.-.049 STRUCTURE THICKNESS, CADMIUM PLATED BASKET.

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