The NAS4121 is a the manufacturer industrial component. Key specifications include material: ALUMINUM, body_style: HORIZONTALLY MOUNTED, overall_width: 1.25 INCHES NOMINAL IN, overall_height: 0.515 INCHES NOMINAL IN, overall_length: 1.531 INCHES NOMINAL IN, surface_treatment: ANODIZE. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-01-286-7295, 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 | ALUMINUM |
| body_style | HORIZONTALLY MOUNTED |
| overall_width | 1.25 INCHES NOMINAL IN |
| overall_height | 0.515 INCHES NOMINAL IN |
| overall_length | 1.531 INCHES NOMINAL IN |
| surface_treatment | ANODIZE |
| end_item_identification | 5840015840224 |
| specification/standard_data | 80205-NAS4121 NATIONAL STD/SPEC |
| unthreaded_mounting_hole_diameter | 0.22 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| mounting_facility_type_and_quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| material_document_and_classification | QQ-A-200 FED STD SINGLE MATERIAL RESPONSE OR QQ-A-250 FED STD SINGLE MATERIAL RESPONSE |
| part_name_assigned_by_controlling_agency | HEAT SINK, ELECTRICAL |
| NSN | 5999-01-286-7295 |
| OVERALL WIDTH | 1.810 INCHES NOMINAL IN |
| OVERALL HEIGHT | 0.750 INCHES NOMINAL IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE |
| TEST DATA DOCUMENT | 81349-MIL-S-87111 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| OVERALL LENGTH | 1.810 INCHES NOMINAL IN |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.190 INCHES NOMINAL ALL MOUNTING FACILITIES IN |
| SURFACE TREATMENT | ANODIZE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| SPECIFICATION/STANDARD DATA | 81349-MIL-A-87111/5 GOVERNMENT SPECIFICATION |
| MOUNTING FACILITY TYPE AND QUANTITY | 2 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES |