Shouldered and Recessed Washer

13211E8712

13211E8712
(NSN) National Stock Number
5310-01-243-9437
Federal Supply Classification
5310 Nuts and Washers
Item Name Code
15935
Schedule B Code
7616108000
Summary

4.025 inches minimum and 4.035 inches maximum hole diameter, 4.560 inches nominal shoulder diameter, 5.880 inches nominal outside diameter, 0.340 inches nominal shoulder height, 0.159 inches minimum and 0.163 inches maximum material thickness, 32.0 rockwell c minimum and 38.0 rockwell c maximum hardness rating

DAC HCC DMIL RNCC
A - - 3
RNVC SADC MSDS RNAAC
2 - - KZ
Identification

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

INC FIIG Concept Condition
15935 A022B0 1 1
Specifications
Hole Diameter
4.025 inches minimum and 4.035 inches maximum
Details The length of a straight line which passes through the center of a hole,and terminates at the circumference.
Shoulder Diameter
4.560 inches nominal
Details The length of a straight line which passes through the center of a shoulder,and terminates at the circumference.
Outside Diameter
5.880 inches nominal
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
Shoulder Height
0.340 inches nominal
Details None.
Material Thickness
0.159 inches minimum and 0.163 inches maximum
Details A measurement of the smallest dimension of the material,in distinction from length or width.
Hardness Rating
32.0 rockwell c minimum and 38.0 rockwell c maximum
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Special Features
depth of bottom recess 0.160 in.,chamfer outer edge 30 deg
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
steel comp 4140 overall or steel comp 4142 overall or steel comp 8640 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
astm a322 assn std all material responses overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
55210 - U -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
CECOM LR CENTER
CAGE: 97403
FORT BELVOIR , VA , 22060
UNITED STATES
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FAQs
Frequently asked questions for NSN 5310-01-243-9437
What is the NIIN of the NSN 5310-01-243-9437?
The National Item Identification Number (NIIN) of the NSN 5310-01-243-9437 is 01-243-9437
When the NSN 5310-01-243-9437 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Wed, Nov 5, 1986
Does the NSN 5310-01-243-9437 contain any precious metals?
Does not contain precious metal
Does the NSN 5310-01-243-9437 contain any hazardous material?
No data in HMIRS

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