The Guard,switch, cataloged under National Stock Number 5930-00-243-5256, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-243-5256 |
| Primary Part Number | 266-0188-020 |
| Item Name | Guard,switch |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Overall Diameter | 1.187 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.625 INCHES NOMINAL IN |
| Surface Treatment | PAINT |
| Material | ALUMINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 60-0023-1 | Grimes Aerospace Company (USA) |
| 266-0188-020 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5930-00-243-5256 is a Guard,switch, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-243-5256 has 2 manufacturer part numbers on file: 60-0023-1 (Grimes Aerospace Company), 266-0188-020 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 266-0188-020: Overall Height: 1.000 INCHES NOMINAL IN; Overall Diameter: 1.187 INCHES NOMINAL IN; Mounting Method: UNTHREADED HOLE(S); Unthreaded Mounting Hole Diameter: 0.625 INCHES NOMINAL 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.