Part Number
Definition:
A WASHER OF NONRESILIENT MATERIAL USUALLY HAVING TWO PARALLEL BEARING SURFACES. THE OUTSIDE AND/OR INSIDE EDGES HAVE ONE OR MORE PROTUBERANCES. THE ENDS AND/OR EDGES MAY BE PREBENT AT ANY ANGLE OR THE PROTUBERANCES MAY BE PREBENT AT ANY ANGLE TO THE BEARING SURFACES. THE KEYS OR LUGS MAY BE FITTED INTO KEYWAYS IN ADJACENT MATERIAL OR THEY MAY BE BENT OVER AFTER APPLICATION TO HOLD OR LOCK ONE OR MORE ITEMS IN PLACE. EXCLUDES THRUST TYPE WASHER.
CAGE Information
| Code | Company |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
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 |
|---|---|---|
| ABMQ | EXTERNAL KEY QUANTITY | 37 |
| AATB | WIDTH BETWEEN FLATS | 6.3735 INCHES MINIMUM AND 6.3775 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 6.525 INCHES MINIMUM AND 6.535 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 7.062 INCHES MINIMUM AND 7.082 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS8435,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 7.750 INCHES NOMINAL |
| MATT | MATERIAL | NICKEL ALLOY OVERALL AND STEEL COMP 302 OVERALL OR COPPER ALLOY OVERALL |
| ABPX | MATERIAL THICKNESS | 0.056 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| CSYM | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL OR QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |