The Cover,relay-Switch, cataloged under National Stock Number 5999-00-899-6579, 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 5 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5999-00-899-6579 |
| Primary Part Number | 49-2661 |
| Item Name | Cover,relay-Switch |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Eaton Corp Opns & Technical Center |
| Status | ACTIVE |
| Body Width | 2.938 INCHES NOMINAL IN |
| Body Height | 0.750 INCHES NOMINAL IN |
| Body Length | 5.313 INCHES NOMINAL IN |
| Mounting Configuration | TWO 0.344 IN. DIA MTG HOLES SPACED 1 IN. C TO C IN |
| Material | PLASTIC PHENOL FORMALDEHYDE (PMO) |
| 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 | 0.0300 lbs |
| Cube | 0.0289 cu ft |
| Part Number | Manufacturer |
|---|---|
| 49-2661 PRIMARY | Eaton Corp Opns & Technical Center (USA) |
| Reference | Meaning |
|---|---|
| 49-2661 | 5/2 Secondary reference U.S. Government activity |
NSN 5999-00-899-6579 is a Cover,relay-Switch, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-899-6579 has 1 manufacturer part number on file: 49-2661 (Eaton Corp Opns & Technical Center).
Key specifications for 49-2661: Body Width: 2.938 INCHES NOMINAL IN; Body Height: 0.750 INCHES NOMINAL IN; Body Length: 5.313 INCHES NOMINAL IN; Mounting Configuration: TWO 0.344 IN. DIA MTG HOLES SPACED 1 IN. C TO C IN. 5 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.