The Contact,electrical, cataloged under National Stock Number 5999-00-028-6789, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-028-6789 |
| Primary Part Number | 45J429ITEM3B |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Voltage Rating in Volts | 250.0 DC |
| Mounting Facility Quantity | 1 |
| Overall Diameter | 0.188 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Mounting Method | THREADED HOLE(S) |
| Style Designator | ROUND FLATTED FIXED POINT CONTACT |
| Precious Material and Weight | 0.100 SILVER GRAINS, TROY |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Precious Material and Location | CONTACT SILVER |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | SILVER CONTACT |
| Terminal Type and Quantity | 1 PIN AXIALLY AT ONE END |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Current Rating in Amps | 300.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | X |
| Part Number | Manufacturer |
|---|---|
| 45J429ITEM3B | Westinghouse Electric Corp (USA) |
| S1258706 | Westinghouse Electric Corp (USA) |
| 45J429ITEM4B | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 45J429ITEM4B | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 1258706 | C/1 Advisory reference — outside the item-of-supply concept Westinghouse Electric Corp Power Generation-Generator Div |
| 45J429ITEM3B | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| S1258706 | 3/9 Design control — primary reference Westinghouse Electric Corp Power Generation-Generator Div |
NSN 5999-00-028-6789 is a Contact,electrical, manufactured by Westinghouse Electric Corp, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-028-6789 has 3 manufacturer part numbers on file: 45J429ITEM3B (Westinghouse Electric Corp), S1258706 (Westinghouse Electric Corp), 45J429ITEM4B (Westinghouse Electric Corp).
Key specifications for 45J429ITEM3B: Voltage Rating in Volts: 250.0 DC; Mounting Facility Quantity: 1; Overall Diameter: 0.188 INCHES NOMINAL IN; Precious Material: SILVER. 16 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.