The Contact,electrical, cataloged under National Stock Number 5999-00-418-1981, 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 Eaton Corp Opns & Technical Center. Government technical data includes 15 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-418-1981 |
| Primary Part Number | 1321-616 |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Eaton Corp Opns & Technical Center |
| Status | ACTIVE |
| Voltage Rating in Volts | 500.0 AC AND 500.0 DC |
| Mounting Facility Quantity | 2 |
| Mounting Method | THREADED HOLE(S) AND UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.196 INCHES NOMINAL IN |
| Distance Between Mounting Facility Centers | 0.500 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Surface Treatment | CADMIUM CONTACT |
| Surface Treatment | CADMIUM BODY |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | COPPER CONTACT |
| Material | COPPER BODY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Current Rating in Amps | 10.0 |
| 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 |
|---|---|
| 89236W1ITEM1 | Eaton Corp Opns & Technical Center (USA) |
| 81966W1ITEM4 | Eaton Corp Opns & Technical Center (USA) |
| 1321-616 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
NSN 5999-00-418-1981 is a Contact,electrical, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-418-1981 has 3 manufacturer part numbers on file: 89236W1ITEM1 (Eaton Corp Opns & Technical Center), 81966W1ITEM4 (Eaton Corp Opns & Technical Center), 1321-616 (Eaton Corp Opns & Technical Center).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-257-7838. Verify interchangeability with system specifications before substitution.
Key specifications for 1321-616: Voltage Rating in Volts: 500.0 AC AND 500.0 DC; Mounting Facility Quantity: 2; Mounting Method: THREADED HOLE(S) AND UNTHREADED HOLE(S); Unthreaded Mounting Hole Diameter: 0.196 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.