1881-125: NUT,PLAIN,ROUND.
The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 4.438 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.688 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL JOINT (UNJ). This part is cataloged in the U.S.
Government catalog under NSN 5310-01-178-3320, 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 OVERALL |
| nut_style | ROUND |
| nut_diameter | 4.438 INCHES NOMINAL IN |
| thread_class | 3B |
| nut_thickness | 0.688 INCHES NOMINAL IN |
| thread_series | UNIFIED NATIONAL JOINT (UNJ) |
| special_features | HOLES LOCATED 3 EACH SIDE OF ONE DRIVE POINT,30.0 DEG FROM C OF POINT TO C OF FIRST HOLE,15.0 DEG C TO C OFEACH HOLE DEGC |
| thread_direction | RIGHT-HAND |
| drive_point_depth | 0.180 INCHES NOMINAL IN |
| drive_point_width | 0.440 INCHES NOMINAL IN |
| surface_treatment | ENAMEL AND PRIMER OVERALL EXCEPT THREADS |
| nominal_thread_size | 3.500 INCHES IN |
| NSN | 5310-01-178-3320 |
| HOLE THREAD QUANTITY PER INCH | 32 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | CPC8225,13002 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | FED-STD-593 FED STD 1ST TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 2ND TREATMENT RESPONSE OVERALL EXCEPT THREADS |
| THREAD SERIES | UNIFIED NATIONAL JOINT (UNJ) |
| HOLE CONFIGURATION STYLE | CONFIGURATION F |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8844,CL 3,300M MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| DRIVE POINT WIDTH | 0.440 INCHES NOMINAL IN |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 3.500 INCHES IN |
| NUT DIAMETER | 4.438 INCHES NOMINAL IN |
No substitute or cross-reference records for this part.