The Attenuator,fixed, cataloged under National Stock Number 5985-00-321-8009, 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 Metropole Products, Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-00-321-8009 |
| Primary Part Number | AFA20TB |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Metropole Products, Inc. |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 1.000 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.600 INCHES NOMINAL IN |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | CONNECTOR |
| Rf Signal Attenuation in Decibels | 20.0 |
| Attenuation Accuracy in Decibels | -1.00 TO 1.00 |
| Connection Type Per Function | FEMALE INPUT AND MALE OUTPUT |
| Application Design | TRANSMISSION LINE |
| Power Rating | 1.0 WATTS AVERAGE |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | TNC |
| 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 |
|---|---|
| AFA20TB | Metropole Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SMA731339-2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AFA20TB | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2760202 | 3/9 Design control — primary reference Bae Systems Aerospace Electronics Inc |
NSN 5985-00-321-8009 is a Attenuator,fixed, manufactured by Metropole Products, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-321-8009 has 1 manufacturer part number on file: AFA20TB (Metropole Products, Inc.).
Key specifications for AFA20TB: Frequency Range: 0.000 HERTZ MINIMUM AND 1.000 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.600 INCHES NOMINAL IN; Input Impedance Rating in Ohms: 50.0. 13 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.