3M187-18: NUT,SELF-LOCKING,EXTENDED WASHER.
NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 8630 OR STEEL COMP 4037 OR STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, lubrication: SOLUBLE LUBRICANT, temp_rating: 450.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.
Government catalog under NSN 5310-01-085-8377, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | STEEL COMP 8630 OR STEEL COMP 4037 OR STEEL COMP 8740 OVERALL |
| nut_style | DOUBLE HEXAGON |
| lubrication | SOLUBLE LUBRICANT |
| temp_rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| overall_height | 1.327 INCHES MAXIMUM IN |
| locking_feature | PREVAILING TORQUE ALL METAL DESIGN |
| thread_direction | RIGHT-HAND |
| washer_thickness | 0.453 INCHES MAXIMUM IN |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| width_across_flats | 1.365 INCHES MINIMUM AND 1.387 INCHES MAXIMUM IN |
| NSN | 5310-01-085-8377 |
| LUBRICATION | SOLUBLE LUBRICANT |
| OVERALL HEIGHT | 1.327 INCHES MAXIMUM IN |
| WASHER OUTSIDE DIAMETER | 1.875 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 1.365 INCHES MINIMUM AND 1.387 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| TEMP RATING | 450.0 FAHRENHEIT MAXIMUM DEGF |
| WASHER THICKNESS | 0.453 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6280 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6300 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6320 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
No substitute or cross-reference records for this part.