The Attenuator,variable, cataloged under National Stock Number 5985-00-403-9718, 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 Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-403-9718 |
| Primary Part Number | 17-13496-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp |
| Status | ACTIVE |
| Waveguide Flange Type | CHOKE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Body Style | WAVEGUIDE TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 SLOTTED SCREW |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.530 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +20.0 TO 45.0 |
| Voltage Standing Wave Ratio | 1.07 |
| Waveguide Flange Designation | UG-599/U |
| Criticality Code Justification | FEAT |
| Unthreaded Mounting Hole Diameter | 0.116 INCHES NOMINAL IN |
| Attenuation Variation Method | CONTINUOUS |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.500 INCHES NOMINAL IN |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 17-13496-1 PRIMARY | Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp (USA) |
| Reference | Meaning |
|---|---|
| 17-13496-1 | 5/9 Secondary reference U.S. Government activity |
| 17-13496-1 | 3/9 Design control — primary reference Textron Systems Corporation Dba Textron Systems Corp |
NSN 5985-00-403-9718 is a Attenuator,variable, manufactured by Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-403-9718 has 1 manufacturer part number on file: 17-13496-1 (Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp).
Key specifications for 17-13496-1: Waveguide Flange Type: CHOKE; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 1.775 INCHES NOMINAL IN; Body Style: WAVEGUIDE TYPE. 15 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 5985-00-403-9718 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.