The Contact,electrical, cataloged under National Stock Number 5999-01-129-0099, 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 Rockwell Collins, Inc. Dba Rc Displays Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-129-0099 |
| Primary Part Number | PC78596-4 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-G-45204,TYPE 2,CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-S-571,TYPE SN60 FED SPEC 2ND TREATMENT RESPONSE CONTACT |
| Precious Material | GOLD |
| Mounting Method | TERMINAL |
| Style Designator | CYLINDRICAL SHAPE |
| Precious Material and Weight | 0.005 GOLD GRAINS, TROY |
| Material Document and Classification | QQ-C-530,HEAT TREATED FULL HARD FED SPEC SINGLE MATERIAL RESPONSE CONTACT |
| Surface Treatment | GOLD AND SOLDER CONTACT |
| Precious Material and Location | CONTACT SURFACE GOLD |
| Material | COPPER ALLOY 173 CONTACT |
| Terminal Type and Quantity | 1 SOLDER STUD AXIALLY AT ONE END |
| Current Rating in Amps | 3.0 |
| 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 | JN |
| Weight | 0.0100 lbs |
| Cube | 0.0009 cu ft |
NSN 5999-01-129-0099 is a Contact,electrical, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-129-0099 has 2 manufacturer part numbers on file: PC78596-4 (Aptiv Services 3 (us), Llc), PC78596-4 (Rockwell Collins, Inc. Dba Rc Displays Systems).
Key specifications for PC78596-4: Surface Treatment Document and Classification: MIL-G-45204,TYPE 2,CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-S-571,TYPE SN60 FED SPEC 2ND TREATMENT RESPONSE CONTACT; Precious Material: GOLD; Mounting Method: TERMINAL; Style Designator: CYLINDRICAL SHAPE. 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.
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.