The Attenuator,variable, cataloged under National Stock Number 5985-00-902-1494, 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 Microwave Engineering Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-902-1494 |
| Primary Part Number | 13858-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Frequency Range | 8500.000 KILOHERTZ MINIMUM AND 10000.000 KILOHERTZ MAXIMUM |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.250 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 10.0 |
| Voltage Standing Wave Ratio | 1.00 AND 1.15 |
| Unthreaded Mounting Hole Diameter | 0.152 INCHES NOMINAL IN |
| Attenuation Variation Method | CONTINUOUS |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.250 INCHES NOMINAL IN |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Power Rating | 2.2 WATTS PEAK |
| 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 |
|---|---|
| 13858-1 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| A25A914-311-101 | 7/1 Vendor item drawing reference U.S. Government activity |
| B67281 | 5/9 Secondary reference U.S. Government activity |
| 13858-1 | 5/9 Secondary reference Lucas Aerospace Communications and Electronics Inc |
NSN 5985-00-902-1494 is a Attenuator,variable, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-902-1494 has 1 manufacturer part number on file: 13858-1 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-353-2465. Verify interchangeability with system specifications before substitution.
Key specifications for 13858-1: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Frequency Range: 8500.000 KILOHERTZ MINIMUM AND 10000.000 KILOHERTZ MAXIMUM; Mounting Facility Pattern: FOUR POSITION RECTANGULAR; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.250 INCHES NOMINAL IN. 12 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 5985-00-902-1494 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.