The Attenuator,variable, cataloged under National Stock Number 5985-01-031-3315, 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 Northrop Grumman Systems Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-031-3315 |
| Primary Part Number | 128SCSEA713-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| FSC Application Data | MICROWAVE DRAWER TEST CONSOLE,SEARCH |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM |
| Overall Attenuation Range in Decibels | +0.0 TO 90.0 |
| Voltage Standing Wave Ratio | 1.50 |
| Attenuation Variation Method | STEPPED |
| Application Design | TRANSMISSION LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 128SCSEA713-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 23770 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-031-3315 is a Attenuator,variable, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-031-3315 has 1 manufacturer part number on file: 128SCSEA713-1 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-461-5677. Verify interchangeability with system specifications before substitution.
Key specifications for 128SCSEA713-1: FSC Application Data: MICROWAVE DRAWER TEST CONSOLE,SEARCH; Frequency Range: 0.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM; Overall Attenuation Range in Decibels: +0.0 TO 90.0; Voltage Standing Wave Ratio: 1.50. 6 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 5985-01-031-3315 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.