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 |
|---|---|
| 20418 | DRS SUSTAINMENT SYSTEMS INC. DIV DRS |
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 |
|---|---|---|
| ABMK | OVERALL WIDTH | 1.220 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.120 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.370 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | KEY |
| MATT | MATERIAL | STEEL OVERALL |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 1.000 INCHES MINIMUM AND 1.030 INCHES MAXIMUM |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.514 INCHES MINIMUM AND 0.523 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |