PartsTable TECHNICAL DATA SHEET

NSN 1285-00-052-5550Government record, cited

Gear Assembly1285-00-052-5550

NSN 1285-00-052-5550 · NIIN 000525550 · Part number 1440866

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 1285 — Fire Control Radar Equipment, Except Airborne · FSG 12 — Fire Control Equipment · CAGE 10001

Government record, cited

NSN 1285-00-052-5550 — this item is cataloged by the U.S. Government under National Stock Number 1285-00-052-5550. Manufacturer of record part number: 1440866.

Also searched as 1285-00-052-5550 · 1285000525550 · NIIN 000525550 · 00-052-5550 · FSC 1285 Fire Control Radar Equipment, Except Airborne · CAGE 10001 · 1440866 · 77-012

Nearby stock numbers ← 1285-00-052-5548 Gear Assembly · 1285-00-052-5551 Gear Assembly →

Features

Gear Assembly — FSC 1285
2 manufacturer part numbers on file
Manufacturer of record: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

Identification

NSN: 1285-00-052-5550
NIIN: 000525550
FSC: 1285 — Fire Control Radar Equipment, Except Airborne
FSG: 12 — Fire Control Equipment
Primary part number: 1440866
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

General Description

The Gear Assembly, cataloged under National Stock Number 1285-00-052-5550, is classified within Federal Supply Class 1285 (Fire Control Radar Equipment, Except Airborne) of the Fire Control Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Gear Assembly
FSC / FSG	1285 — Fire Control Radar Equipment, Except Airborne (FSG 12)
Manufacturers	Lockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001)

Technical Specifications

Parameter	Value
NSN	1285-00-052-5550
Primary Part Number	1440866
Item Name	Gear Assembly
FSC / FSG	1285 / 12 — Fire Control Radar Equipment, Except Airborne
Manufacturer	Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL D — Destroy Item
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	S

⇄ Related Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

2915-00-289-3949 POSSIBLE MATCH

VALVE,FUEL DRAIN

Possible match (shared part number)

5310-00-448-395377012 POSSIBLE MATCH

NUT,LOCK

Possible match (shared part number)Telemechanics Inc

3610-01-121-446854199510 POSSIBLE MATCH

DRUM,COPIER

Possible match (shared part number)Ricoh Americas Corporation

6150-01-309-997377012 POSSIBLE MATCH

LEAD,STORAGE BATTERY

Possible match (shared part number)Honeywell International Inc Dba Honeywell Div Consumer Products Group

5940-01-474-976238770-1212 POSSIBLE MATCH

TERMINAL BOARD

Possible match (shared part number)Molex, Llc

6220-01-546-44376220R POSSIBLE MATCH

LIGHT,WARNING

Possible match (shared part number)Ecco Electronic Controls Company

7220-01-653-255825RBS-770-12 POSSIBLE MATCH

TREAD,NONMETALLIC,NONSKID

Possible match (shared part number)Louisiana Association for the Blind

Cross-Reference Index

Part Number	Manufacturer
77-012	Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1440866 PRIMARY	Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)

Related Parts

2915-00-289-3949POSSIBLE MATCH

VALVE,FUEL DRAIN

5310-00-448-3953POSSIBLE MATCH

NUT,LOCK

77012

3610-01-121-4468POSSIBLE MATCH

DRUM,COPIER

54199510

6150-01-309-9973POSSIBLE MATCH

LEAD,STORAGE BATTERY

77012

5940-01-474-9762POSSIBLE MATCH

TERMINAL BOARD

38770-1212

6220-01-546-4437POSSIBLE MATCH

LIGHT,WARNING

6220R

7220-01-653-2558POSSIBLE MATCH

TREAD,NONMETALLIC,NONSKID

25RBS-770-12

Frequently Asked Questions

What is NSN 1285-00-052-5550?

NSN 1285-00-052-5550 is a Gear Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1285, Fire Control Radar Equipment, Except Airborne. Status: active.

What part numbers are listed for NSN 1285-00-052-5550?

NSN 1285-00-052-5550 has 2 manufacturer part numbers on file: 77-012 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1440866 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 1285-00-052-5550?

7 possible matches (shared part number, not a government interchangeability claim): 2915-00-289-3949, 5310-00-448-3953, 3610-01-121-4468. Verify interchangeability with system specifications before substitution.

Is NSN 1285-00-052-5550 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 1285-00-052-5550?

NSN 1285-00-052-5550 has DEMIL Code D. 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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