The Switch,stepping, cataloged under National Stock Number 5930-00-974-3978, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-974-3978 |
| Primary Part Number | 2270853ISSUEB |
| Item Name | Switch,stepping |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corporation |
| Status | ACTIVE |
| Current Type | DC |
| Drive Type | INDIRECT |
| Contact Quantity Per Bank Level | 52 |
| Control Method | REMOTE |
| Coil Type | DRIVE |
| Operating Current Rating | 480.0 MILLIAMPERES NOMINAL |
| Mounting Method | BASE |
| Nonbridging Level Quantity | 2 |
| Magnetic Coil Quantity | 1 |
| Electrical Resistance | 100.0 OHMS NOMINAL |
| Contact Current Rating | 3.0 AMPERES |
| Auxiliary Interrupter Contact Arrangement | 1C |
| Bridging Level Quantity | 6 |
| Bank Level Quantity | 8 |
| Auxiliary Off-Normal Contact Arrangement | 1C |
| Mounting Configuration | THREE NO. 8/0.164 IN./-32 TAPPED MTG HOLES IRREGULARLY SPACED ON SWITCH FRAME IN |
| Wiper Contact Quantity Per Bank Level | 1 |
| Voltage Rating | 48.0 VOLTS NOMINAL |
| Stepping Direction | UNIDIRECTIONAL |
| 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 |
|---|---|
| 2270853ISSUEB | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2270853ISSUEB | 3/9 Design control — primary reference Itt Industries Inc Itt Aerospace Communications Div East |
NSN 5930-00-974-3978 is a Switch,stepping, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-974-3978 has 1 manufacturer part number on file: 2270853ISSUEB (L3harris Technologies, Inc. Dba Harris Corporation).
Key specifications for 2270853ISSUEB: Overall Height: 5.250 INCHES NOMINAL IN; Current Type: DC; Drive Type: INDIRECT; Contact Quantity Per Bank Level: 52. 19 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.