The Attenuator,variable, cataloged under National Stock Number 5985-01-250-4222, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Robinson Laboratories Inc Dba Herley New England. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-250-4222 |
| Primary Part Number | 5051-K15 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Robinson Laboratories Inc Dba Herley New England |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 2.5 |
| Impedance Rating in Ohms | 10000.0 INPUT |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Frequency Range | 2.000 GIGAHERTZ MINIMUM AND 6.000 GIGAHERTZ MAXIMUM |
| Body Style | IRREGULAR |
| Overall Attenuation Range in Decibels | +5.0 TO 60.0 |
| Voltage Standing Wave Ratio | 2.01 |
| Overall Attenuation Accuracy in Decibels | -8.00 TO 8.00 |
| Distance Between Mounting Facility Centers | 1.140 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE AND 4 PIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 500-F130 | Rh Laboratories, Inc. (USA) |
| 5051-K15 PRIMARY | Robinson Laboratories Inc Dba Herley New England (USA) |
| LSC9 PRIMARY | Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions (USA) |
| 62-055466-01 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| LSC9 | 5/9 Secondary reference Teledyne Wireless, Inc. Dba Teledyne Microwave Div Teledyne Microwave |
| 62-055466-01 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 5051-K15 | 5/9 Secondary reference General Microwave Corporation Div Kratos Microwave Electronics |
NSN 5985-01-250-4222 is a Attenuator,variable, manufactured by Robinson Laboratories Inc Dba Herley New England, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-250-4222 has 4 manufacturer part numbers on file: 500-F130 (Rh Laboratories, Inc.), 5051-K15 (Robinson Laboratories Inc Dba Herley New England), LSC9 (Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions), 62-055466-01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
Key specifications for 5051-K15: Insertion Loss at Minimum Attenuation in Maximum Decibels: 2.5; Impedance Rating in Ohms: 10000.0 INPUT; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 0.340 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-250-4222 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.