The Switch,radio Frequency Transmiss, cataloged under National Stock Number 5985-01-081-5251, 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 Support Services Corp. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-081-5251 |
| Primary Part Number | 138C670H01 |
| Item Name | Switch,radio Frequency Transmiss |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Body Style | RECTANGULAR |
| Voltage Standing Wave Ratio | 1.35 SINGLE |
| Pole Quantity | 1 |
| Minimum Crosstalk Rating in Decibels | 80.0 SINGLE |
| Switch Type | NONTRANSFER |
| Insertion Loss in Decibels | 1.00 SINGLE |
| Actuator Operating Method | RELAY |
| Operating Temp Range | -65.0 TO 85.0 CELSIUS DEGC |
| Frequency Rating | 2.0 MEGAHERTZ MINIMUM AND 32.0 MEGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING |
| Terminal Type and Quantity | 3 CONNECTOR, RECEPTACLE |
| Throw Quantity | 1 |
| 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 |
|---|---|
| 100C1055 | Daico Industries, Inc. Dba Daico Industries Inc (USA) |
| 138C670H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 138C670H01 | 3/9 Design control — primary reference U.S. Government activity |
| DS16-MW | 5/9 Secondary reference Oxy-Dry Corp |
| DS16-MW | 5/2 Secondary reference U.S. Government activity |
NSN 5985-01-081-5251 is a Switch,radio Frequency Transmiss, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-081-5251 has 2 manufacturer part numbers on file: 100C1055 (Daico Industries, Inc. Dba Daico Industries Inc), 138C670H01 (Northrop Grumman Support Services Corp).
Key specifications for 138C670H01: Overall Height: 3.000 INCHES NOMINAL IN; Body Style: RECTANGULAR; Voltage Standing Wave Ratio: 1.35 SINGLE; Pole Quantity: 1. 11 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 5985-01-081-5251 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.