AIA/NAS 1765-2011 pdf download NUT, SELF-LOCKING, PLATE, TWO LUG, 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 INCHES; THREADS SHALL SHOW COMPLETE COVERAGE BUT THICKNESS REQUIREMENT ON THREAD IS WAIVED. OPTIONAL SILVER PLATE ON NUT RETAINING CAGE AND SPHERICAL WASHER.
LUBRICATION:
STEEL – AN APPROVED DRY FILM LUBRICANT.
CRES – 450 °F NUT: AN APPROVED DRY FILM LUBRICANT SHALL BE APPLIED IN LIEU OF SILVER PLATE.
OPTIONAL DRY FILM LUBRICANT ON NUT RETAINING CAGE AND SPHERICAL WASHER.
EXAMPLE OF PART NUMBER:
NAS1 765 C 3 K = SELF-ALIGNING, SELF-LOCKING, NUT PLATE, CRES, SILVER PLATED,COUNTERBORED, PLATED, .1 900-32 THREAD, DIMPLED OR COUNTERSUNK
RIVET HOLES.
K = DIMPLED OR COUNTERSUNK RIVET HOLES, OMIT FOR PLAIN HOLES 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.
/3/ NUT ELEMENT SHALL BE CAPABLE OF ENGAGEMENT WITH A BOLT AT A MAXIMUM ANGULAR MISALIGNMENT OF 8° FROM VERTICAL CENTERLINE IN ALL DIRECTIONS AT FLOAT EXTREMES.
(4) DIMENSIONS IN INCHES AND APPLY AFTER FINISH AND PRIOR TO THE APPLICATION OF LUBRICATION UNLESS OTHERWISE SPECIFIED.
(5) CONFIGURATION OF NUT PLATE COMPONENTS 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 UNJF-3B.
PROCUREMENT SPECIFICATION: NASM25027 EXCEPT AS NOTED. ALL NUTS MUST MEET QUALIFICATION AND INSPECTION REQUIREMENTS. TESTING FOR TORQUE OUT, PUSH OUT AND TENSILE STRENGTH MUST PASS QUALIFICATION REQUIREMENTS WITH THE NUT AT THE MAXIMUM ANGULAR MISALIGNED POSITION. MANUFACTURERS SHALL PROVIDE EVIDENCE OF QUALIFICATION WHEN REQUIRED. TESTING SHALL BE PERFORMED BY MANUFACTURER OR INDEPENDENT LABORATORY. PROCURING AGENCY MAY CONDUCT CONFIRMING QUALIFICATION TESTS. NO QPL SHALL BE ESTABLISHED.

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