Ballast, Aircraft1680-01-643-2390

NSN 1680-01-643-2390 · NIIN 016432390

FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories

Government record, cited

Also searched as 1680-01-643-2390 · 1680016432390 · NIIN 016432390 · 01-643-2390 · FSC 1680 Miscellaneous Aircraft Accessories and Components

Nearby stock numbers ← 1680-01-643-2348 Computer, Special Purpose · 1680-01-643-2405 Actuator, Control, SL →

Features

Ballast,aircraft — FSC 1680
Material Document and Classification: QQ-L-171 FED SPEC 1ST MATERIAL RESPONSE
Material Thickness: 0.300 INCHES NOMINAL IN
Aircraft Location: VIBRATION ABORBER
Material: LEAD
Aircraft Mission Design Series: UH-2C

Identification

NSN: 1680-01-643-2390
NIIN: 016432390
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories

General Description

The Ballast,aircraft, cataloged under National Stock Number 1680-01-643-2390, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1680-01-643-2390
Item Name	Ballast,aircraft
FSC / FSG	1680 / 16 — Miscellaneous Aircraft Accessories and Components
Status	ACTIVE
Material Document and Classification	QQ-L-171 FED SPEC 1ST MATERIAL RESPONSE
Material Thickness	0.300 INCHES NOMINAL IN
Aircraft Location	VIBRATION ABORBER
Material	LEAD
Aircraft Mission Design Series	UH-2C

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
K631758-15	3/2 Design control — primary reference U.S. Government activity

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.

1680-00-000-0144

CUSHION,SEAT BACK,AIRCRAFT

1680-00-001-1401

1680-00-001-1401 · Item name not on file

1680-00-001-1402

1680-00-001-1402 · Item name not on file

1680-00-001-1403

1680-00-001-1403 · Item name not on file

1680-00-001-1404

COVER,INERTIA REEL

1680-00-001-1730

SHIELD,THERMAL RADI

1680-00-001-1731

LEVER,REMOTE CONTROL

1680-00-001-1736

DUCT ASSEMBLY,BRANCHED

Frequently Asked Questions

What is NSN 1680-01-643-2390?

NSN 1680-01-643-2390 is a Ballast,aircraft, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What are the specifications of 1680-01-643-2390?

Key specifications for 1680-01-643-2390: Material Document and Classification: QQ-L-171 FED SPEC 1ST MATERIAL RESPONSE; Overall Length: 10.000 INCHES NOMINAL IN; Overall Width: 8.000 INCHES NOMINAL IN; Material Thickness: 0.300 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 1680-01-643-2390 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.

What is the DEMIL code for NSN 1680-01-643-2390?

NSN 1680-01-643-2390 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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