250-514: MICROPHONE,DYNAMIC.
The MICROPHONE,DYNAMIC is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.255 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN, thread_length: 0.250 INCHES MAXIMUM IN, fastener_length: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-977-8978, 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 |
| head_style | FLAT COUNTERSUNK |
| thread_class | 3A A |
| head_diameter | 0.255 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN |
| thread_length | 0.250 INCHES MAXIMUM IN |
| fastener_length | 0.250 INCHES NOMINAL IN |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| locking_feature | STRIP THREADS |
| thread_direction | RIGHT-HAND |
| countersink_angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| width_across_flats | 0.078 INCHES NOMINAL IN |
| NSN | 5305-00-977-8978 |
| WIDTH ACROSS FLATS | 0.078 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.250 INCHES NOMINAL IN |
| THREAD LENGTH | 0.250 INCHES MAXIMUM IN |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.138 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| LOCKING FEATURE | STRIP THREADS |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |