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Part Number:
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Item Name:
WASHER , SHOULDERED

Definition:

A WASHER, ROUND IN SHAPE, AND HAVING A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS FLAT AND UNBROKEN, THE OTHER SURFACE IS IN THE FORM OF A RAISED SHOULDER (BOSS) HAVING A FLAT BEARING SURFACE. 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.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

NUTS AND WASHERS

Inclusions:

INCLUDES LOCKNUTS; EYE NUTS; PLAIN NUTS; CASTELLATED NUTS; WING NUTS; PLATE NUTS; PUSH ON NUTS; CONCAVE AND CONVEX WASHERS; FLAT WASHERS; KEYED WASHERS; LOCK WASHERS; SHOULDERED WASHERS; SPLIT WASHERS.

Exclusions:

EXCLUDES BEARING THRUST WASHERS (FSC 3120); SHIMS (FSC 5365); RING SPACERS (FSC 5365); PLATE SPACERS (FSC 5365); LOCK RINGS (FSC 5365).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ABKV OUTSIDE DIAMETER 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
MATT MATERIAL STEEL COMP 4130 OVERALL OR STEEL COMP 8630 OVERALL
ABPX MATERIAL THICKNESS 0.057 INCHES MINIMUM AND 0.062 INCHES MAXIMUM
STYL STYLE DESIGNATOR SHOULDERED
MDCL MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
AAUB HOLE DIAMETER 0.7500 INCHES MINIMUM AND 0.7515 INCHES MAXIMUM
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS77 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
ABMG SHOULDER HEIGHT 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CSYM SURFACE FINISH 100.0 MICROINCHES ALL SURFACES
AAVH SHOULDER DIAMETER 0.9383 INCHES MINIMUM AND 0.9393 INCHES MAXIMUM

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