PartsTable TECHNICAL DATA SHEET

NSN 1660-01-101-4239Government record, cited

Unit Assembly1660-01-101-4239

NSN 1660-01-101-4239 · NIIN 011014239 · Part number 6846964

Allison Transmission Inc Dba Allison Transmission, Inc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 73342

Government record, cited

NSN 1660-01-101-4239 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-101-4239. Manufacturer of record part number: 6846964.

Also searched as 1660-01-101-4239 · 1660011014239 · NIIN 011014239 · 01-101-4239 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 73342 · 6846964 · 673661-107

Nearby stock numbers ← 1660-01-101-4077 · 1660-01-101-4278 →

Features

Unit Assembly — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Allison Transmission Inc Dba Allison Transmission, Inc

Identification

NSN: 1660-01-101-4239
NIIN: 011014239
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 6846964
Manufacturer: Allison Transmission Inc Dba Allison Transmission, Inc

General Description

The Unit Assembly, cataloged under National Stock Number 1660-01-101-4239, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	Unit Assembly
FSC / FSG	1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers	Allison Transmission Inc Dba Allison Transmission, Inc (CAGE 73342)

Technical Specifications

Parameter	Value
NSN	1660-01-101-4239
Primary Part Number	6846964
Item Name	Unit Assembly
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer	Allison Transmission Inc Dba Allison Transmission, Inc
Status	ACTIVE

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
6846964 PRIMARY	Allison Transmission Inc Dba Allison Transmission, Inc (USA)

Reference documents

Reference	Meaning
673661-107	5/2 Secondary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment

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

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PISTON

1660-01-601-0729

ETHERNET SWITCH

Frequently Asked Questions

What is NSN 1660-01-101-4239?

NSN 1660-01-101-4239 is a Unit Assembly, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What part numbers are listed for NSN 1660-01-101-4239?

NSN 1660-01-101-4239 has 1 manufacturer part number on file: 6846964 (Allison Transmission Inc Dba Allison Transmission, Inc).

Is NSN 1660-01-101-4239 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 1660-01-101-4239?

NSN 1660-01-101-4239 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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