STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN, material: STEEL EYELET, drive_type: CROSS RECESS, eyelet_length: 0.322 INCHES NOMINAL IN, stud_head_height: 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-687-5689, 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.
| diameter | 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN |
| material | STEEL EYELET |
| drive_type | CROSS RECESS |
| eyelet_length | 0.322 INCHES NOMINAL IN |
| stud_head_height | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| stud_assembly_style | STUD ASSEMBLY |
| end_item_identification | 1520-01-035-0266 HELICOPTER, UTILITY |
| eyelet_outside_diameter | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| turnlock_stud_head_style | FLAT FILLISTER |
| material_accommodated_thickness | 0.240 INCHES MINIMUM AND 0.269 INCHES MAXIMUM IN |
| material_document_and_classification | QQ-S-640 FED SPEC SINGLE MATERIAL RESPONSE EYELET |
| NSN | 5325-00-687-5689 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-640 FED SPEC SINGLE MATERIAL RESPONSE EYELET |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING |
| MATERIAL | STEEL COMP 4037 STUD |
| STUD ASSEMBLY STYLE | STUD ASSEMBLY |
| DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD | 0.752 INCHES MINIMUM AND 0.767 INCHES MAXIMUM IN |
| MATERIAL ACCOMMODATED THICKNESS | 0.240 INCHES MINIMUM AND 0.269 INCHES MAXIMUM IN |
| STUD HEAD HEIGHT | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| DRIVE TYPE | CROSS RECESS |
| EYELET OUTSIDE DIAMETER | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| EYELET LENGTH | 0.322 INCHES NOMINAL IN |