Style Designator: PERIPHERAL FACE, BACK HUB PROTRUDING
Pitch Diameter: 3.5000 INCHES NOMINAL IN
Identification
NSN: 3020-01-220-0080
NIIN: 012200080
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
General Description
The Gear,bevel, cataloged under National Stock Number 3020-01-220-0080, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
3020-01-220-0080
Item Name
Gear,bevel
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Status
ACTIVE
Teeth Quantity
38
Body Style
PLAIN, SOLID
Bore Style
PLAIN BOTH ENDS
Teeth Type
SPIRAL
Nominal Overall Length
1.123 INCHES IN
Style Designator
PERIPHERAL FACE, BACK HUB PROTRUDING
Pitch Diameter
3.5000 INCHES NOMINAL IN
Nominal Outside Diameter
3.603 INCHES IN
Pressure Angle
14.5000 DEGREES
Material
NICKEL ALLOY OVERALL
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3020-01-220-1243SSN593-520-1862100 PIECE 2POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Portsmouth Naval Shipyard
3020-01-220-1244SSN593-520-1862100 PIECE 3POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Portsmouth Naval Shipyard
3020-01-220-6939SSN593-520-1862100 PIECE 1POSSIBLE MATCH
GEAR,WORM WHEEL
Possible match (shared part number)Portsmouth Naval Shipyard
3040-01-221-1599SSN593-520-1862100 PIECE 7POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Portsmouth Naval Shipyard
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
SSN593-520-1862100
D/9Drawing number reference only
U.S. Government activity
SSN593-520-1862100 PIECE 4
3/2Design control — primary reference
U.S. Government activity
Related Parts
3020-01-220-1243POSSIBLE MATCH
GEAR,SPUR
SSN593-520-1862100 PIECE 2
3020-01-220-1244POSSIBLE MATCH
GEAR,SPUR
SSN593-520-1862100 PIECE 3
3020-01-220-6939POSSIBLE MATCH
GEAR,WORM WHEEL
SSN593-520-1862100 PIECE 1
3040-01-221-1599POSSIBLE MATCH
SHAFT,SHOULDERED
SSN593-520-1862100 PIECE 7
Frequently Asked Questions
What is NSN 3020-01-220-0080?
NSN 3020-01-220-0080 is a Gear,bevel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What NSN replaces 3020-01-220-0080?
4 possible matches (shared part number, not a government interchangeability claim): 3020-01-220-1243, 3020-01-220-1244, 3020-01-220-6939. Verify interchangeability with system specifications before substitution.
What are the specifications of 3020-01-220-0080?
Key specifications for 3020-01-220-0080: Teeth Quantity: 38; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS; Teeth Type: SPIRAL. 10 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-220-0080 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.