The Coupler,directional, cataloged under National Stock Number 5985-00-178-1143, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-178-1143 |
| Primary Part Number | 251758 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Raytheon Company Dba Raytheon |
| Status | ACTIVE |
| Radio Frequency Rating | 0.15 MEGAHERTZ MINIMUM AND 40.0 MEGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| Design Type | UNIDIRECTIONAL |
| Usage Design | MAIN LINE AND SECONDARY LINE TERMINAL FITTING |
| Power Loss in Decibels | 2.0 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| IR-1-20/11587 | Merrimac Industries, Inc (USA) |
| 3670 | Microwave Filter Co Inc (USA) |
| 251758 PRIMARY | Raytheon Company Dba Raytheon (USA) |
| IR-1-20 | Merrimac Industries, Inc (USA) |
NSN 5985-00-178-1143 is a Coupler,directional, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-178-1143 has 4 cross-referenced part numbers: IR-1-20/11587 (Merrimac Industries, Inc), 3670 (Microwave Filter Co Inc), 251758 (Raytheon Company Dba Raytheon), IR-1-20 (Merrimac Industries, Inc).
There are 12 known substitutes for 5985-00-178-1143: 5220-00-214-0830, 5120-00-248-6665, 6670-00-364-1565 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 251758: Overall Height: 0.780 INCHES NOMINAL IN; Radio Frequency Rating: 0.15 MEGAHERTZ MINIMUM AND 40.0 MEGAHERTZ MAXIMUM; Unit Type: COAXIAL LINE; Design Type: UNIDIRECTIONAL. 8 total characteristics are documented in the Federal Logistics Information System.