2840-00-912-0657 BEARING SPACER Index 2840-00-912-0659 CASE,TURBINE,AIRCRAFT GAS TURBIN

National Stock Number:
5310-00-912-0658

Federal Supply Class:
5310

National Item Identification Number:
009120658

Description:
NUT,PLAIN,ROUND

Detail:
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. See also NUT (1), PLAIN, KNURLED. (When height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)


Manufacturer Information:
5208445A628DELL MANUFACTURING CO., LLC
52084477445RTX CORPORATION
52084499106AMERICAN AIRCRAFT PARTS MFG. CO.


Techincal Specification:
THREAD SERIESUNJS
NOMINAL THREAD SIZE4.9375 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OR
AM 6323 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTSILVER OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2210 ASSN STD SINGLE TREATMENT RESPONSE OR
AMS 2212 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM
NUT STYLEROUND
DRIVE POINT DEPTH0.170 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
NUT DIAMETER5.572 INCHES MINIMUM AND
5.576 INCHES MAXIMUM
NUT THICKNESS1.640 INCHES MINIMUM AND
1.660 INCHES MAXIMUM
DRIVE POINT WIDTH0.490 INCHES MINIMUM AND
0.510 INCHES MAXIMUM
DRIVE POINT QUANTITY10
HOLE CONFIGURATION STYLECONFIGURATION F
HOLE TYPE AND QUANTITY18 TAPPED
HOLE NOMINAL THREAD DIAMETER0.216 INCHES
HOLE THREAD QUANTITY PER INCH28
NUT COUNTERBORE DEPTH0.110 INCHES MINIMUM AND
0.130 INCHES MAXIMUM BASE
COUNTERBORE DIAMETER5.277 INCHES MINIMUM AND
5.283 INCHES MAXIMUM BASE
COUNTERSINK ANGLE2.0 DEGREES MINIMUM AND
4.0 DEGREES MAXIMUM BASE
SPECIAL FEATURES54 HOLES,0.084 IN. MIN 0.094 IN. MAX DIA,FROM BASE TO BOTTOM OF INSIDE GROOVE BEYOND THREADS; INSIDE DIAMETER 4.960 IN. MIN,4.970 IN. MAX,UNTHREADED PORTION; EXTERNAL GROOVE,0.050 IN. MIN,0.070 IN. MAX W; 5.390 IN. MIN,5.410 IN. MAX OD,DRIVE SIDE,AT END OF CHAMFER; 10 DRIVE SLOTS,0.490 IN. MIN,0.510 IN. MAX W; RADIAL HOLES CTR 0.275 IN. FM BASE; LONGITUDINAL HOLES IN GROUPS OF THREE


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