The Attenuator,fixed, cataloged under National Stock Number 5985-01-028-1861, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-028-1861 |
| Primary Part Number | 247AS-C2449-001 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Mounting Hole/stud Quantity | 4 |
| Frequency Range | 215.000 MEGAHERTZ MINIMUM AND 235.000 MEGAHERTZ MAXIMUM |
| Body Style | RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.600 INCHES NOMINAL IN |
| Voltage Standing Wave Ratio | 1.50 |
| Mounting Method | UNTHREADED HOLE(S) |
| Rf Signal Attenuation in Decibels | 50.0 |
| Attenuation Accuracy in Decibels | -0.05 TO 0.05 |
| Unthreaded Mounting Hole Diameter | 0.140 INCHES NOMINAL IN |
| Body Length | 4.000 INCHES NOMINAL IN |
| Connection Type Per Function | FEMALE INPUT AND MALE OUTPUT |
| Operating Temp Range | +0.0 TO 65.0 FAHRENHEIT DEGF |
| Voltage Standing Wave Ratio Frequency Range | +215.0 TO 235.0 MEGAHERTZ |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.600 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 4 CONNECTOR |
| 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 |
|---|---|
| 247AS-C2449-001 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| MD-42TIA | Caes Mission Systems Llc (USA) |
NSN 5985-01-028-1861 is a Attenuator,fixed, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-028-1861 has 2 manufacturer part numbers on file: 247AS-C2449-001 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), MD-42TIA (Caes Mission Systems Llc).
Key specifications for 247AS-C2449-001: Overall Height: 3.750 INCHES NOMINAL IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Mounting Hole/stud Quantity: 4; Frequency Range: 215.000 MEGAHERTZ MINIMUM AND 235.000 MEGAHERTZ MAXIMUM. 17 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 5985-01-028-1861 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.