5331-01-498-4577 O-RING Index 8135-01-498-4579 BARRIER MATERIAL,GREASEPROOFED-W

National Stock Number:
5325-01-498-4578

Federal Supply Class:
5325

National Item Identification Number:
014984578

Description:
RING,RETAINING

Detail:
A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see PUSH ON NUT. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also CLIP, RETAINING and PIN, LOCK. Excludes RING, CONNECTING, ROUND.


Manufacturer Information:
M27426-2100D81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-R-2742681349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
CASEHARDENING INDICATORNOT CASEHARDENED
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
INSIDE DIAMETER0.426 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
MAJOR THICKNESS0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM
OUTSIDE DIAMETER0.040 INCHES MINIMUM AND 0.048 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059, TYPE 302 MIL SPEC 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE
MATERIAL HARDNESS RATING72.0 ROCKWELL A MINIMUM AND 74.9 ROCKWELL A MAXIMUM
MATERIALSTEEL COMP 302
RING STYLESPIRAL
SURFACE TREATMENTPASSIVATE
USAGE DESIGNEXTERNAL


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