AIA/NAS 1766-2011 pdf download NUT, SELF-LOCKING, PLATE, CORNER, COUNTERBORED, FLOATING, 1 25 KSI Ftu, 450 °F AND 800 °F
FINISH:
STEEL – CADMIUM PLATE PER AMS-QQ-P-41 6. TYPE AND CLASS OF PLATING IS OPTIONAL IF LUBRICATED NUTS WILL MEET THE SALT SPRAY REQUIREMENTS OF AMS-QQ-P-41 6 TYPE II
CRES – 800 °F NUT: SILVER PLATE PER AMS241 0. PLATE THICKNESS MEASURED ON ANY EXTERNAL SURFACE OF THE NUT SHALL NOT BE LESS THAN .0002 INCH; THREADS SHALL SHOW COMPLETE COVERAGE BUT THICKNESS REQUIREMENT ON THREAD IS WAIVED. OPTIONAL SILVER PLATE ON NUT RETAINING CAGE.
LUBRICATION:
STEEL – LUBRICANT PER PROCUREMENT SPECIFICATION.
CRES – 450 °F NUT: A LUBRICANT PER THE PROCUREMENT SPECIFICATION SHALL BE APPLIED IN LIEU OF SILVER PLATE. DRY FILM LUBRICANT ON NUT RETAINING CAGE OPTIONAL.
EXAMPLE OF PART NUMBER:
NAS1 766 C 3 = SELF-LOCKING, CORNER, NUT PLATE, CRES, SILVER PLATED, COUNTERBORED, FLOATING.
DASH NUMBER AS TABULATED
“C” = CRES, SILVER PLATED, FOR USE UP TO 800 °F
MATERIAL: “CL” = CRES, DRY FILM LUBRICATION, FOR USE UP TO 450 °F
“–” = STEEL, CADMIUM PLATED PLUS DRY FILM
LUBRICATION, FOR USE UP TO 450 °F
BASIC PART NUMBER
NOTES:
/1 / MINIMUM “H” NOT SPECIFIED, LIMITED ONLY BY STRENGTH REQUIREMENT.
(2) FLOAT OF NUT PORTION OF ASSEMBLY SHALL NOT BE LESS THAN .025 RADIALLY FROM CENTERED POSITION. NUT ELEMENT SHALL BE CAPABLE OF ENGAGEMENT WITH BOLT IN THE MAXIMUM MISALIGNED POSITION.
(3) MAGNETIC PERMEABILITY FOR CRES NUTS SHALL BE LESS THAN 2.0 (AIR = 1 .0) FOR A FIELD STRENGTH H = 200 OERSTEDS USING A MAGNETIC PERMEABILITY INDICATOR PER ASTM A342/A342M,TEST METHOD 3.
(4) DIMENSIONS IN INCHES AND APPLY AFTER FINISH AND PRIOR TO THE APPLICATION OF LUBRICATION UNLESS OTHERWISE SPECIFIED.
(5) CONFIGURATION OF NUT OPTIONAL WITHIN THE LIMITATIONS IMPOSED BY DIMENSIONS AND REQUIREMENTS AS SPECIFIED HEREIN.
/6/ THREAD PORTION DEFORMED AT INDICATED END TO PRODUCE SELF-LOCKING ACTION.
/7/ THREADS BEFORE LUBRICATION PER AS8879.
(8) THIS STANDARD TAKES PRECEDENCE OVER DOCUMENTS REFERENCED HEREIN.
(9) UNLESS OTHERWISE SPECIFIED, PART INVENTORY MANUFACTURED TO PREVIOUS REVISIONS OF THE APPLICABLE DRAWING OR SPECIFICATION MAY BE PROCURED AND USED UNTIL STOCK IS DEPLETED.
(1 0) UNLESS OTHERWISE SPECIFIED HEREIN, REFERENCED DOCUMENTS SHALL BE THE ISSUE IN EFFECT ON DATE OF MANUFACTURE. HOWEVER, EXISTING MATERIAL INVENTORY CERTIFIED TO A PREVIOUS REVISION OF THE APPLICABLE MATERIAL SPECIFICATION(S) IS ACCEPTABLE FOR USE UNTIL DEPLETION.
(1 1 ) DIMENSIONING AND TOLERANCING PER ANSI Y1 4.5M-1 982.
(1 2) HARDNESS: 49 HRC MAXIMUM

Share on Facebook

Post on X

Follow us

Save