The Contact,electrical, cataloged under National Stock Number 5999-00-643-5975, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-643-5975 |
| Primary Part Number | 4221-4 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — No Item Name Available |
| Manufacturer | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| Status | ACTIVE |
| Precious Material | SILVER |
| Material | STEEL BODY AND CONTACT |
| Terminal Type and Quantity | 1 TURRET CENTER |
| Style Designator | CYLINDRICAL SHAPE |
| Precious Material and Location | CONTACT SILVER |
| Surface Treatment | SILVER CONTACT |
| Precious Material and Weight | 0.005 SILVER GRAINS, TROY |
| Mounting Method | UNTHREADED HOLE(S) |
| Current Rating in Amps | 25.0 |
| Mounting Facility Quantity | 1 |
| Voltage Rating in Volts | 500.0 AC |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.156 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Material | STEEL BODY AND CONTACT |
| Terminal Type and Quantity | 1 TURRET CENTER |
| Style Designator | CYLINDRICAL SHAPE |
| Precious Material and Location | CONTACT SILVER |
| Surface Treatment | SILVER CONTACT |
| Precious Material and Weight | 0.005 SILVER GRAINS, TROY |
| Mounting Method | UNTHREADED HOLE(S) |
| Current Rating in Amps | 25.0 |
| Mounting Facility Quantity | 1 |
| Voltage Rating in Volts | 500.0 AC |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.156 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| SMR Code | J |
| Weight | 0.0250 lbs |
| Cube | 0.0001 cu ft |
| Part Number | Manufacturer |
|---|---|
| K31P84 | Lockheed Martin Corporation Div Rms (USA) |
| 4221-4 PRIMARY | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA) |
| K856367-37 | Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA) |
| K876305-2 | Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA) |
NSN 5999-00-643-5975 is a Contact,electrical, manufactured by Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc, classified under FSC 5999 (No Item Name Available). Status: active.
NSN 5999-00-643-5975 has 4 cross-referenced part numbers: K31P84 (Lockheed Martin Corporation Div Rms), 4221-4 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), K856367-37 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), K876305-2 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin).
There are 4 known substitutes for 5999-00-643-5975: 4720-00-162-2888, 5310-00-167-1366, 4720-00-443-4746 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4221-4: Precious Material: SILVER; Material: STEEL BODY AND CONTACT; Terminal Type and Quantity: 1 TURRET CENTER; Style Designator: CYLINDRICAL SHAPE. 28 total characteristics are documented in the Federal Logistics Information System.