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NSN 1680-01-421-2423Government record, cited

Reel, Shoulder Harness, Inertia Lo1680-01-421-2423

NSN 1680-01-421-2423 · NIIN 014212423 · Part number 1S20B25A4X-27

Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 45402

Government record, cited

NSN 1680-01-421-2423 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-421-2423. Manufacturer of record part number: 1S20B25A4X-27.

Also searched as 1680-01-421-2423 · 1680014212423 · NIIN 014212423 · 01-421-2423 · FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 45402 · 1S20B25A4X-27

Nearby stock numbers ← 1680-01-421-1457 Control Assembly, Push-Pull · 1680-01-421-3358 Holder, Chart →

Features

Reel,shoulder Harness,inertia Lo — FSC 1680
1 manufacturer part number on file
Manufacturer of record: Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County

Identification

NSN: 1680-01-421-2423
NIIN: 014212423
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 1S20B25A4X-27
Manufacturer: Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County

General Description

The Reel,shoulder Harness,inertia Lo, cataloged under National Stock Number 1680-01-421-2423, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Reel,shoulder Harness,inertia Lo
FSC / FSG	1680 — Miscellaneous Aircraft Accessories and Components (FSG 16)
Manufacturers	Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (CAGE 45402)

Technical Specifications

Parameter	Value
NSN	1680-01-421-2423
Primary Part Number	1S20B25A4X-27
Item Name	Reel,shoulder Harness,inertia Lo
FSC / FSG	1680 / 16 — Miscellaneous Aircraft Accessories and Components
Manufacturer	Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
1S20B25A4X-27 PRIMARY	Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (USA)

No interchangeability data on file.

Other items in FSC 1680 — Miscellaneous Aircraft Accessories and Components

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

1680-00-001-1736

DUCT ASSEMBLY,BRANCHED

1680-00-003-3721

1680-00-003-3721 · Item name not on file

1680-00-009-3782

PISTON,EJECTOR,INNER

1680-00-009-6180

1680-00-009-6180 · Item name not on file

1680-00-475-0002

TIP,RUBBER CONTROL

1680-00-696-6170

ADAPTER,SCREW END A

1680-00-867-7158

COVER,GEARCASE

1680-00-885-0923

KNOB ASSY,LANDING G

Frequently Asked Questions

What is NSN 1680-01-421-2423?

NSN 1680-01-421-2423 is a Reel,shoulder Harness,inertia Lo, manufactured by Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What part numbers are listed for NSN 1680-01-421-2423?

NSN 1680-01-421-2423 has 1 manufacturer part number on file: 1S20B25A4X-27 (Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County).

Is NSN 1680-01-421-2423 hazardous material?

No hazard code in the DLA record (HMIC N). 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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