The Attenuator,variable, cataloged under National Stock Number 5985-01-321-3222, 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 Omega Laboratories Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-321-3222 |
| Primary Part Number | 3147602-2 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Omega Laboratories Inc |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.3 |
| Mounting Facility Type and Quantity | 2 TERMINAL WITH MOUNTING HOLES |
| Frequency Range | 8.900 GIGAHERTZ MINIMUM AND 9.400 GIGAHERTZ MAXIMUM |
| Body Style | WAVEGUIDE TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 THUMBSCREW |
| Voltage Standing Wave Ratio | 1.20 |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 781904-2 | Lockheed Martin Corporation Div Rms (USA) |
| 3147602-2 PRIMARY | Omega Laboratories Inc (USA) |
| 17019/20,21,22 PRIMARY | Marc Alan Group the, Inc (USA) |
| 3147602-2 PRIMARY | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
| Reference | Meaning |
|---|---|
| 3147602-2 | 5/9 Secondary reference Marc Alan Group the, Inc |
| 3147602-2 | 5/9 Secondary reference Atlantic Microwave Corporation Div Cobham Electronic Systems |
| 3147602-2 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 781904-2 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5985-01-321-3222 is a Attenuator,variable, manufactured by Omega Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-321-3222 has 4 manufacturer part numbers on file: 781904-2 (Lockheed Martin Corporation Div Rms), 3147602-2 (Omega Laboratories Inc), 17019/20,21,22 (Marc Alan Group the, Inc), 3147602-2 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).
Key specifications for 3147602-2: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.3; Mounting Facility Type and Quantity: 2 TERMINAL WITH MOUNTING HOLES; Frequency Range: 8.900 GIGAHERTZ MINIMUM AND 9.400 GIGAHERTZ MAXIMUM; Body Style: WAVEGUIDE TYPE. 9 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.
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.