PartsTable TECHNICAL DATA SHEET

NSN 1680-01-616-2979Government record, cited

Lead-Apu System1680-01-616-2979

NSN 1680-01-616-2979 · NIIN 016162979 · Part number 369259-47

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 45934

Government record, cited

NSN 1680-01-616-2979 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-616-2979. Manufacturer of record part number: 369259-47.

Also searched as 1680-01-616-2979 · 1680016162979 · NIIN 016162979 · 01-616-2979 · FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 45934 · 369259-47

Nearby stock numbers ← 1680-01-616-2931 Control Panel, Aircraft · 1680-01-616-2980 Lead-Apu System →

Features

Lead-Apu System — FSC 1680
1 manufacturer part number on file
Manufacturer of record: Ontic Engineering & Manufacturing, Inc Dba Ontic Us

Identification

NSN: 1680-01-616-2979
NIIN: 016162979
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 369259-47
Manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us

General Description

The Lead-Apu System, cataloged under National Stock Number 1680-01-616-2979, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Lead-Apu System
FSC / FSG	1680 — Miscellaneous Aircraft Accessories and Components (FSG 16)
Manufacturers	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934)

Technical Specifications

Parameter	Value
NSN	1680-01-616-2979
Primary Part Number	369259-47
Item Name	Lead-Apu System
FSC / FSG	1680 / 16 — Miscellaneous Aircraft Accessories and Components
Manufacturer	Ontic Engineering & Manufacturing, Inc Dba Ontic Us
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
369259-47	Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)

Reference documents

Reference	Meaning
369259-47	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 1680-01-616-2979?

NSN 1680-01-616-2979 is a Lead-Apu System, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What part numbers are listed for NSN 1680-01-616-2979?

NSN 1680-01-616-2979 has 1 manufacturer part number on file: 369259-47 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).

Is NSN 1680-01-616-2979 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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