NSN 3020-01-379-3064 · NIIN 013793064 · Part number 561-6404325-75
Naval Sea Systems Command · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3020-01-379-3064 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-379-3064. Manufacturer of record part number: 561-6404325-75.
Also searched as3020-01-379-3064 ·
3020013793064 ·
NIIN 013793064 ·
01-379-3064 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 53711 · 561-6404325-75 · 211060998 · 24B6-24 · 6404325
Hub Outside Diameter: 0.750 INCHES NOMINAL AA END IN
Securing Method: SETSCREW
Bore Length: 0.500 INCHES NOMINAL IN
Design Form: PLAIN
Tooth Pitch: 0.131 INCHES NOMINAL IN
Outside Diameter: 1.083 INCHES NOMINAL IN
Style Designator: PLAIN
Identification
NSN: 3020-01-379-3064
NIIN: 013793064
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 561-6404325-75
Manufacturer: Naval Sea Systems Command
General Description
The Sprocket Wheel, cataloged under National Stock Number 3020-01-379-3064, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3020-01-379-3064
Primary Part Number
561-6404325-75
Item Name
Sprocket Wheel
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Hub Outside Diameter
0.750 INCHES NOMINAL AA END IN
Securing Method
SETSCREW
Bore Length
0.500 INCHES NOMINAL IN
Design Form
PLAIN
Tooth Pitch
0.131 INCHES NOMINAL IN
Outside Diameter
1.083 INCHES NOMINAL IN
Style Designator
PLAIN
Pitch Diameter
1.000 INCHES NOMINAL IN
Bore Type
STRAIGHT
Teeth Row Quantity
1
Teeth Quantity Per Row
24
Protruding Hub Characteristic
PLAIN
Hardness Rating Test Method
NOT RATED
Distance From Hub End to Flange End
0.250 INCHES NOMINAL AA END IN
Surface Treatment
ANODIZE
Bore Diameter
0.375 INCHES NOMINAL IN
Material
ALUMINUM
Face Width
0.250 INCHES NOMINAL IN
Securing Location
AA END
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3020-01-409-1251POSSIBLE MATCH
CHAIN,CABLE
Possible match (shared part number)
3020-01-409-1258211064942POSSIBLE MATCH
CHAIN,CABLE
Possible match (shared part number)Naval Sea Systems Command
2040-01-409-1580561-6404325-11POSSIBLE MATCH
SHAFT,RUDDER
Possible match (shared part number)Naval Sea Systems Command
2030-01-409-1584211060310POSSIBLE MATCH
STEERING WHEEL
Possible match (shared part number)Naval Sea Systems Command
3120-01-411-6504561-6404325-58POSSIBLE MATCH
BEARING,SLEEVE
Possible match (shared part number)Sargent Aerospace & Defense, Llc Dba Kahr Bearings
4730-01-422-9457561-6404325-165POSSIBLE MATCH
ADAPTER,STRAIGHT,FLANGE TO FLANG
Possible match (shared part number)Naval Sea Systems Command
2010-01-423-2431167-6404610-94POSSIBLE MATCH
ADAPTER,STERRING
Possible match (shared part number)Naval Sea Systems Command
2010-01-423-2437211060296POSSIBLE MATCH
HOUSING COLUMN STEERING
Possible match (shared part number)Naval Sea Systems Command
2010-01-423-2442211094505POSSIBLE MATCH
HOUSING,COLU STEERING
Possible match (shared part number)Naval Sea Systems Command
NSN 3020-01-379-3064 is a Sprocket Wheel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-379-3064?
NSN 3020-01-379-3064 has 2 manufacturer part numbers on file: 561-6404325-75 (Naval Sea Systems Command), 211060998 (Naval Sea Systems Command).
What NSN replaces 3020-01-379-3064?
9 possible matches (shared part number, not a government interchangeability claim): 3020-01-409-1251, 3020-01-409-1258, 2040-01-409-1580. Verify interchangeability with system specifications before substitution.
What are the specifications of 561-6404325-75?
Key specifications for 561-6404325-75: Hub Outside Diameter: 0.750 INCHES NOMINAL AA END IN; Securing Method: SETSCREW; Bore Length: 0.500 INCHES NOMINAL IN; Design Form: PLAIN. 19 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-379-3064 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.