5340-01-445-6876 PLUG,PROTECTIVE,DUST AND MOISTUR Index 5305-01-445-6878 SCREW,DRIVE

National Stock Number:
5310-01-445-6877

Federal Supply Class:
5310

National Item Identification Number:
014456877

Description:
WASHER,CONCAVE

Detail:
A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.


Manufacturer Information:
03A350CC4CB15653HOWMET GLOBAL FASTENING SYSTEMS INC
03A350CC4CB1W025NORTHROP GRUMMAN SYSTEMS CORP
03A350CC4CB33011BUDA PRECISION INC.
03A350CC4CB56878SPS TECHNOLOGIES, LLC
03A350CC4CB60119MONADNOCK COMPANY, THE


Techincal Specification:
MATERIALSTEEL COMP 631 OR
STEEL COMP 630 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND
43.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORCONCAVE
HOLE DIAMETER0.358 INCHES MINIMUM AND
0.368 INCHES MAXIMUM
RADIUS0.360 INCHES MINIMUM AND
0.380 INCHES MAXIMUM
OUTSIDE DIAMETER0.557 INCHES MINIMUM AND
0.567 INCHES MAXIMUM
MATERIAL THICKNESS0.070 INCHES MINIMUM AND
0.090 INCHES MAXIMUM


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