The 491R120-2 is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, construction: ONE-PIECE, outside_diameter: 0.170 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN, surface_treatment: PASSIVATE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-01-071-0228, 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 302 |
| construction | ONE-PIECE |
| outside_diameter | 0.170 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN |
| style_designator | CIRCULAR |
| aperture_diameter | 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| surface_treatment | PASSIVATE |
| material_document_and_classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE |
| surface_treatment_document_and_classification | MIL-T-704 MIL SPEC SINGLE TREATMENT RESPONSE |
| NSN | 5365-01-071-0228 |
| SURFACE TREATMENT | PASSIVATE |
| APERTURE DIAMETER | 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE |
| CONSTRUCTION | ONE-PIECE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-T-704 MIL SPEC SINGLE TREATMENT RESPONSE |
| OUTSIDE DIAMETER | 0.170 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN |
| STYLE DESIGNATOR | CIRCULAR |
| MATERIAL | STEEL COMP 302 |