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| Part Number | 504028-1 | 504021-1 |
|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors |
| Product Status | Obsolete | Discontinued at Digi-Key |
| Type | Coupler | Coupler |
| Convert From (Adapter End) | FSMA Receptacle | ST Receptacle |
| Convert To (Adapter End) | FSMA Receptacle | ST Receptacle |
| Simplex/Duplex | Simplex | Simplex |
| Mode | - | Singlemode/Multimode |
| Mounting Type | Panel Mount, Bulkhead | Panel Mount, Bulkhead |
| Housing Material | Stainless Steel | Zinc |
| Ferrule Material | - | Phosphor Bronze |
| Features | Dust Cap | Dust Cap |
| Color | Silver | Silver |
