The Switch,stepping, cataloged under National Stock Number 5930-00-899-0558, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5930-00-899-0558 |
| Primary Part Number | B323169 |
| Item Name | Switch,stepping |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| FSC Application Data | TELEPHONE SWITCH STEPPING |
| Contact Type | NONBRIDGING |
| Current Type | DC |
| Drive Type | DIRECT |
| Contact Quantity Per Bank Level | 26 |
| Control Method | SELF |
| Coil Type | DRIVE |
| Operating Current Rating | 680.0 MILLIAMPERES NOMINAL |
| Mounting Method | BASE |
| Nonbridging Level Quantity | 20 |
| Magnetic Coil Quantity | 1 |
| Electrical Resistance | 70.0 OHMS NOMINAL |
| Contact Current Rating | 3.0 AMPERES |
| Auxiliary Interrupter Contact Arrangement | 1B |
| Bank Level Quantity | 10 |
| Auxiliary Off-Normal Contact Arrangement | 1C |
| Mounting Configuration | TWO 0.173 IN. DIA MTG HOLES SPACED 5.938 IN. C TO C IN |
| Wiper Contact Quantity Per Bank Level | 20 |
| 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 |
|---|---|
| B323169 PRIMARY | Te Connectivity Corporation (USA) |
| 219550-000 | Stromberg-Carlson Corp a Plessey Telecommunications Co (USA) |
| Reference | Meaning |
|---|---|
| B323169 | 5/9 Secondary reference Te Connectivity Corporation |
| B323169 | 5/9 Secondary reference Cp Clare Corp North American Sales Operations |
| 219550-000 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
NSN 5930-00-899-0558 is a Switch,stepping, manufactured by Te Connectivity Corporation, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-899-0558 has 2 manufacturer part numbers on file: B323169 (Te Connectivity Corporation), 219550-000 (Stromberg-Carlson Corp a Plessey Telecommunications Co).
Key specifications for B323169: Overall Height: 2.750 INCHES NOMINAL IN; FSC Application Data: TELEPHONE SWITCH STEPPING; Contact Type: NONBRIDGING; Current Type: DC. 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.