The Attenuator,fixed, cataloged under National Stock Number 5985-01-081-5563, 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 Bird Electronic Corporation Div Bird Electronic Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-081-5563 |
| Primary Part Number | 100-SA-FFN-20 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Bird Electronic Corporation Div Bird Electronic Corp |
| Status | ACTIVE |
| Body Style | RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Voltage Standing Wave Ratio | 1.15 |
| Rf Signal Attenuation in Decibels | 20.0 |
| Body Length | 6.250 INCHES NOMINAL IN |
| Operating Temp Range | -40.0 TO 45.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Power Rating | 100.0 WATTS AVERAGE |
| 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 |
|---|---|
| 100-SA-FFN-20 PRIMARY | Bird Electronic Corporation Div Bird Electronic Corp (USA) |
| 100-AS-FFN-20 PRIMARY | Bird Electronic Corporation Div Bird Electronic Corp (USA) |
| 91454033 | Thales Sa (FRA) |
| IN100W-20F | Spectrum Control, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 8343-200 | 5/9 Secondary reference Bird Electronic Corporation Div Bird Electronic Corp |
NSN 5985-01-081-5563 is a Attenuator,fixed, manufactured by Bird Electronic Corporation Div Bird Electronic Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-081-5563 has 4 manufacturer part numbers on file: 100-SA-FFN-20 (Bird Electronic Corporation Div Bird Electronic Corp), 100-AS-FFN-20 (Bird Electronic Corporation Div Bird Electronic Corp), 91454033 (Thales Sa), IN100W-20F (Spectrum Control, Inc.).
Key specifications for 100-SA-FFN-20: Overall Height: 2.750 INCHES NOMINAL IN; Body Style: RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES; Voltage Standing Wave Ratio: 1.15; Rf Signal Attenuation in Decibels: 20.0. 7 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 5985-01-081-5563 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.