Switch Section, Rotary5930-00-451-8221

NSN 5930-00-451-8221 · NIIN 004518221 · Part number MC321-2

Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories · FSC 5930 — Switches · FSG 59 — Electrical and Electronic Equipment Components · CAGE 02734

Government record, cited

NSN 5930-00-451-8221 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-451-8221. Manufacturer of record part number: MC321-2.

Also searched as 5930-00-451-8221 · 5930004518221 · NIIN 004518221 · 00-451-8221 · FSC 5930 Switches · CAGE 02734 · MC321-2 · 264369DLX2

Nearby stock numbers ← 5930-00-451-7650 · 5930-00-451-8222 Switch Section, Rotary →

Features

Switch Section,rotary — FSC 5930
3 manufacturer part numbers on file
Manufacturer of record: Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories

Identification

NSN: 5930-00-451-8221
NIIN: 004518221
FSC: 5930 — Switches
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: MC321-2
Manufacturer: Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories

General Description

The Switch Section,rotary, cataloged under National Stock Number 5930-00-451-8221, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Switch Section,rotary
FSC / FSG	5930 — Switches (FSG 59)
Manufacturers	Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories (CAGE 02734); Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (CAGE 76854)

Technical Specifications

Parameter	Value
NSN	5930-00-451-8221
Primary Part Number	MC321-2
Item Name	Switch Section,rotary
FSC / FSG	5930 / 59 — Switches
Manufacturer	Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)

Cross-Reference Index

Part Number	Manufacturer
MC321-2 PRIMARY	Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories (USA)
MC321-2 PRIMARY	Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
264369DLX2	Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)

No interchangeability data on file.

Other items in FSC 5930 — Switches

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5930-00-000-0117

SWITCH,PRESSURE

5930-00-001-1407

5930-00-001-1407 · Item name not on file

5930-00-001-1890

SWITCH,SENSITIVE

5930-00-001-2571

SWITCH,ROTARY

5930-00-001-2575

5930-00-001-2575 · Item name not on file

5930-00-001-2580

5930-00-001-2580 · Item name not on file

5930-00-001-2608

5930-00-001-2608 · Item name not on file

5930-00-001-2609

5930-00-001-2609 · Item name not on file

Frequently Asked Questions

What is NSN 5930-00-451-8221?

NSN 5930-00-451-8221 is a Switch Section,rotary, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories, classified under FSC 5930, Switches. Status: active.

What part numbers are listed for NSN 5930-00-451-8221?

NSN 5930-00-451-8221 has 3 manufacturer part numbers on file: MC321-2 (Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories), MC321-2 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 264369DLX2 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch).

Is NSN 5930-00-451-8221 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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