The Attenuator,fixed, cataloged under National Stock Number 5985-00-318-1840, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-318-1840 |
| Primary Part Number | 251835-1 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Raytheon Company Dba Raytheon |
| Status | ACTIVE |
| Surface Treatment | CHROMIUM BODY |
| Material | ALUMINUM BODY |
| Waveguide Flange Designation | UG-39/U |
| Waveguide Designation | RG-52/U |
| Voltage Standing Wave Ratio Frequency Range | +8.2 TO 12.4 GIGAHERTZ |
| Rf Signal Attenuation in Decibels | 40.0 |
| Waveguide Flange Type | COVER |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.280 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.169 INCHES NOMINAL IN |
| Attenuation Accuracy in Decibels | -0.50 TO 0.50 |
| Body Style | RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Operating Temp Range | +0.0 TO 71.0 CELSIUS DEGC |
| Inside Height | 0.400 INCHES NOMINAL IN |
| Inside Width | 0.900 INCHES NOMINAL IN |
| Mounting Hole/stud Quantity | 4 |
| Power Rating | 2.0 WATTS AVERAGE |
| Voltage Standing Wave Ratio | 1.20 |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.220 INCHES NOMINAL IN |
| Terminal Type and Quantity | 2 FLANGE |
| Application Design | WAVEGUIDE |
| Frequency Range | 8.200 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM |
| Mounting Method | TERMINAL WITH MOUNTING HOLES |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5985-00-318-1840 is a Attenuator,fixed, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-318-1840 has 2 cross-referenced part numbers: 720-40 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 251835-1 (Raytheon Company Dba Raytheon).
There are 5 known substitutes for 5985-00-318-1840: 5133-00-189-9285, 5330-00-570-7271, 5360-00-597-3278 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 251835-1: Surface Treatment: CHROMIUM BODY; Material: ALUMINUM BODY; Waveguide Flange Designation: UG-39/U; Waveguide Designation: RG-52/U. 25 total characteristics are documented in the Federal Logistics Information System.