Part Number
Part Number:
NSN:
NIIN:
Item Name:
WASHER , CONCAVE
Definition:
A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.
CAGE Information
| Code | Company |
|---|---|
| 98897 | LOCKHEED MARTIN CORPORATION DBA LOCK |
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 |
|---|---|---|
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL OR MIL-C-8837,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | CONCAVE |
| ABPX | MATERIAL THICKNESS | 0.157 INCHES MINIMUM AND 0.177 INCHES MAXIMUM |
| ABGG | RADIUS | 0.515 INCHES MINIMUM AND 0.535 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 4142 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4145 OVERALL |
| ABMD | RECESS DIAMETER | 1.070 INCHES MINIMUM AND 1.130 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.854 INCHES MINIMUM AND 0.864 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR ASTM A193,GR B7 ASSN STD 4TH MATERIAL RESPONSE OVERALL OR ASTM A193,GR B7 ASSN STD 3RD MATERIAL RESPONSE OVERALL OR ASTM A193,GR B7 ASSN STD 5TH MATERIAL RESPONSE OVERALL OR ASTM A193,GR B7 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| AAUB | HOLE DIAMETER | 0.580 INCHES MINIMUM AND 0.590 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |