The Switch,liquid Level, cataloged under National Stock Number 5930-00-903-2120, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Aerospace Control Products, Inc. Dba Aerospace Control Products Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-903-2120 |
| Primary Part Number | G5F5500-1 |
| Item Name | Switch,liquid Level |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Aerospace Control Products, Inc. Dba Aerospace Control Products Inc |
| Status | ACTIVE |
| Relay | INCLUDED |
| Actuation Method | BUOYANCY |
| Overall Diameter | 2.380 INCHES NOMINAL IN |
| Current Rating at Maximum Rated Voltage | 500.0 MILLIAMPERES RESISTIVE LOAD |
| DC Voltage Rating | 28.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| Mounting Method | FLANGE |
| Contact Arrangement | SPST,NORMALLY OPEN |
| Mounting Position | VERTICAL |
| Connector Identification | 3102A18-8P |
| Float and Contact Positions | FLOAT UP, CONTACTS OPEN |
| Float Effective Travel | 10.080 INCHES NOMINAL IN |
| Float Quantity | 1 |
| Liquid Type for Which Designed | AIRCRAFT FUEL |
| Tank Insertion Length | 13.480 INCHES MAXIMUM IN |
| Aircraft Fuel Grade Specification | MIL-T-5624 |
| Aircraft Fuel Grade | GRADE JP-4 |
| Operating Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF |
| Mounting Dimensions | MTD BY EIGHT 9/32 IN. DIA HOLES EQUALLY SPACED ON 1-3/4 IN. RADIUS IN |
| Aircraft Fuel for Which Designed | SPECIFIC |
| Electrical Connection Type | CONNECTOR RECEPTACLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| G5F5500-1 PRIMARY | Aerospace Control Products, Inc. Dba Aerospace Control Products Inc (USA) |
| Reference | Meaning |
|---|---|
| G5F5500-1 | 5/9 Secondary reference U.S. Government activity |
| F74225 | 3/2 Design control — primary reference U.S. Government activity |
| 9900045-1 | 7/2 Vendor item drawing reference Textron Aviation Inc |
| 9900045-1 | 7/9 Vendor item drawing reference Cessna Aircraft Company Dba Textron Aviation |
NSN 5930-00-903-2120 is a Switch,liquid Level, manufactured by Aerospace Control Products, Inc. Dba Aerospace Control Products Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-903-2120 has 1 manufacturer part number on file: G5F5500-1 (Aerospace Control Products, Inc. Dba Aerospace Control Products Inc).
Key specifications for G5F5500-1: Relay: INCLUDED; Actuation Method: BUOYANCY; Overall Diameter: 2.380 INCHES NOMINAL IN; Current Rating at Maximum Rated Voltage: 500.0 MILLIAMPERES RESISTIVE LOAD. 20 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.
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.