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 |
|---|---|---|
| ABMR | INTERNAL KEY QUANTITY | 1 |
| SFTT | SURFACE TREATMENT | EPOXY OVERALL |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 4.812 INCHES MINIMUM AND 4.842 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 3.515 INCHES MINIMUM AND 3.535 INCHES MAXIMUM |
| MATT | MATERIAL | NICKEL ALLOY OVERALL AND STEEL COMP 302 OVERALL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS-8656,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,CLASS A FED SPEC 1ST MATERIAL RESPONSE OVERALL AND MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| ABMQ | EXTERNAL KEY QUANTITY | 19 |
| ABPX | MATERIAL THICKNESS | 0.063 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 4.125 INCHES MINIMUM AND 4.145 INCHES MAXIMUM |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |