The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-01-018-2621, 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 Frontgrade Technologies Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-018-2621 |
| Primary Part Number | 3131 |
| Item Name | Coupler,rotary,radio Frequency |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Configuration | EIGHT 0.136 IN. DIA MTG HOLES ON 3.343 IN. DIA B C IN |
| Unit Type | COAXIAL LINE |
| Radio Frequency Rating | 990.0 MEGAHERTZ MINIMUM AND 1130.0 MEGAHERTZ MAXIMUM |
| Material | COPPER |
| Overall Diameter | 3.620 INCHES NOMINAL IN |
| Output Impedance Rating in Ohms | 150.0 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 36-2120 | Diamond Antenna & Microwave Corporation (USA) |
| 3131 PRIMARY | Frontgrade Technologies Inc. (USA) |
| 36-2120-0 | Diamond Antenna & Microwave Corporation (USA) |
| 635A103H01 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 2396-A-00 | Atlantic Microwave Corporation Div Cobham Electronic Systems (USA) |
| 635A103H01 | Northrop Grumman Support Services Corp (USA) |
| 2396-A-00 | Axillon Aerospace (baltimore) Inc. (USA) |
| 3131 | Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division (USA) |
NSN 5985-01-018-2621 is a Coupler,rotary,radio Frequency, manufactured by Frontgrade Technologies Inc., classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-01-018-2621 has 8 cross-referenced part numbers: 36-2120 (Diamond Antenna & Microwave Corporation), 3131 (Frontgrade Technologies Inc.), 36-2120-0 (Diamond Antenna & Microwave Corporation), 635A103H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 2396-A-00 (Atlantic Microwave Corporation Div Cobham Electronic Systems) and 3 more.
There are 11 known substitutes for 5985-01-018-2621: 6110-00-161-4115, 2520-00-214-2644, 4940-00-391-4573 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3131: Input Impedance Rating in Ohms: 50.0; Mounting Configuration: EIGHT 0.136 IN. DIA MTG HOLES ON 3.343 IN. DIA B C IN; Unit Type: COAXIAL LINE; Radio Frequency Rating: 990.0 MEGAHERTZ MINIMUM AND 1130.0 MEGAHERTZ MAXIMUM. 8 total characteristics are documented in the Federal Logistics Information System.