The Attenuator,fixed, cataloged under National Stock Number 5985-00-426-7217, 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 Microlab/fxr Llc. Government technical data includes 24 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-426-7217 |
| Primary Part Number | AH-E43 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Frequency Range | 1.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.420 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Voltage Standing Wave Ratio | 1.25 |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | TERMINAL |
| Rf Signal Attenuation in Decibels | 4.0 |
| Attenuation Accuracy in Decibels | -0.30 TO 0.30 |
| Material Document and Classification | QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626,COMP 22,1/2 H FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626,COMP 22,1/2 H FED SPEC SINGLE MATERIAL RESPONSE TERMINAL |
| Surface Treatment | PASSIVATE OR GOLD BODY |
| Surface Treatment | PASSIVATE OR GOLD TERMINAL |
| Precious Material and Location | CENTER CONDUCTOR SURFACE GOLD |
| Connection Type Per Function | FEMALE INPUT AND MALE OUTPUT |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +1.0 TO 2.0 GIGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Material | STEEL COMP 303 OR COPPER ALLOY 360 BODY |
| Material | STEEL COMP 303 OR COPPER ALLOY 360 TERMINAL |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | BNC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AH-E43 PRIMARY | Microlab/fxr Llc (USA) |
| Reference | Meaning |
|---|---|
| CP155-4-0F1F2 | 5/9 Secondary reference Solitron Devices, Inc. |
| A367CS | 5/9 Secondary reference Caes Systems Llc |
| 92222-16 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 929-0026 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-00-426-7217 is a Attenuator,fixed, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-426-7217 has 1 manufacturer part number on file: AH-E43 (Microlab/fxr Llc).
1 possible match (shared part number, not a government interchangeability claim): 6635-01-521-1506. Verify interchangeability with system specifications before substitution.
Key specifications for AH-E43: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Frequency Range: 1.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.420 INCHES NOMINAL IN. 24 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 5985-00-426-7217 has DEMIL Code B. 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.