The Contact,electrical, cataloged under National Stock Number 5999-01-189-9384, 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 The Boeing Company Div Defense. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5999-01-189-9384 |
| Primary Part Number | ST5M1557-006 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Pin Diameter | 0.040 INCHES NOMINAL IN |
| Pin Accommodation Length | 0.492 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT |
| Overall Diameter | 0.275 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Mounting Method | FORCE FIT |
| Criticality Code Justification | FEAT |
| Style Designator | CYLINDRICAL SHAPE |
| Precious Material and Weight | 0.005 GOLD GRAINS, TROY |
| Material Document and Classification | QQ-B-626 FED SPEC 1ST MATERIAL RESPONSE AND QQ-C-530 FED SPEC 2ND MATERIAL RESPONSE BODY AND CONTACT |
| Surface Treatment | GOLD BODY AND CONTACT |
| Precious Material and Location | BODY AND CONTACT SURFACES GOLD |
| Cable Entrance Diameter | 0.275 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY AND CONTACT |
| Terminal Type and Quantity | 1 CRIMP END OPPOSITE CONTACT |
| 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 | Y |
| Unit of Issue | EA |
| Acquisition advice code | ZN |
| Weight | 0.0010 lbs |
| Cube | 0.0000 cu ft |
| Part Number | Manufacturer |
|---|---|
| ST5M1557-006 PRIMARY | The Boeing Company Div Defense (USA) |
| 225791-2 | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| ST5M1557-006 | 5/9 Secondary reference Te Connectivity Corporation |
NSN 5999-01-189-9384 is a Contact,electrical, manufactured by The Boeing Company Div Defense, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-189-9384 has 2 manufacturer part numbers on file: ST5M1557-006 (The Boeing Company Div Defense), 225791-2 (Te Connectivity Corporation).
Key specifications for ST5M1557-006: Pin Diameter: 0.040 INCHES NOMINAL IN; Pin Accommodation Length: 0.492 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT; Overall Diameter: 0.275 INCHES NOMINAL IN. 15 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.