The Relay-Switch, cataloged under National Stock Number 5999-01-221-7901, 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 Middleby Marshall Inc Conveyor Ovens and Mixers Div. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Relay-Switch |
| FSC / FSG | 5999 — Miscellaneous Electrical and Electronic Components (FSG 59) |
| Manufacturers | Middleby Marshall Inc Conveyor Ovens and Mixers Div (CAGE 50703) |
| Parameter | Value |
|---|---|
| NSN | 5999-01-221-7901 |
| Primary Part Number | 103123 |
| Item Name | Relay-Switch |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Middleby Marshall Inc Conveyor Ovens and Mixers Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 0.5200 lbs |
| Cube | 0.0100 cu ft |
| Part Number | Manufacturer |
|---|---|
| 103123 PRIMARY | Middleby Marshall Inc Conveyor Ovens and Mixers Div (USA) |
| Reference | Meaning |
|---|---|
| CLASS 8502 TYPE DN8. | C/1 Advisory reference — outside the item-of-supply concept Schneider Electric Usa, Inc Dba Schneider Electric |
NSN 5999-01-221-7901 is a Relay-Switch, manufactured by Middleby Marshall Inc Conveyor Ovens and Mixers Div, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-221-7901 has 1 manufacturer part number on file: 103123 (Middleby Marshall Inc Conveyor Ovens and Mixers Div).
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.