NSN 3020-01-377-7533 · NIIN 013777533 · Part number 211041102
Naval Sea Systems Command · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3020-01-377-7533 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-377-7533. Manufacturer of record part number: 211041102.
Also searched as3020-01-377-7533 ·
3020013777533 ·
NIIN 013777533 ·
01-377-7533 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 53711 · 211041102 · 801-6406709 FIND 7 · 6406709
Mounting Hole Type and Quantity: 12 PLAIN AXIALLY THROUGH FLANGE
Mounting Hole Nominal Diameter: 0.530 INCHES AXIALLY THROUGH FLANGE IN
Identification
NSN: 3020-01-377-7533
NIIN: 013777533
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 211041102
Manufacturer: Naval Sea Systems Command
General Description
The Gear,internal, cataloged under National Stock Number 3020-01-377-7533, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government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
3020-01-377-7533
Primary Part Number
211041102
Item Name
Gear,internal
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Hub Nominal Diameter
5.498 INCHES SECOND END IN
Teeth Quantity
48
Body Style
PLAIN, SOLID
Flange Nominal Thickness
0.390 INCHES IN
Flange Nominal Diameter
7.750 INCHES IN
Mounting Hole Type and Quantity
12 PLAIN AXIALLY THROUGH FLANGE
Mounting Hole Nominal Diameter
0.530 INCHES AXIALLY THROUGH FLANGE IN
Teeth Type
SPUR
Nominal Overall Length
1.060 INCHES IN
Style Designator
FLANGED RING
Pitch Diameter
4.8000 INCHES NOMINAL IN
Hub Style Designator
PLAIN SECOND END
Nominal Outside Diameter
5.998 INCHES IN
Pressure Angle
20.0000 DEGREES
Material
STEEL COMP 4340 OVERALL
Bolt Hole Circle Nominal Diameter
7.000 INCHES AXIALLY THROUGH FLANGE IN
Attachment Method
MOUNTING HOLE
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 Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-377-9309801-6406709 FIND 27POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-378-5015211041080POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3020-01-379-3097211071415POSSIBLE MATCH
GEAR,INTERNAL
Possible match (shared part number)Naval Sea Systems Command
3040-01-383-5253211052706POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3020-01-383-5531211071414POSSIBLE MATCH
GEAR,INTERNAL
Possible match (shared part number)Naval Sea Systems Command
3020-01-416-33126406709-78POSSIBLE MATCH
GEAR,INTERNAL
Possible match (shared part number)Naval Sea Systems Command
4820-01-416-6864801-6406709-AY90POSSIBLE MATCH
GEAR OPERATOR,VALVE
Possible match (shared part number)Naval Sea Systems Command
3020-01-421-5277801-6406709 FIND 81POSSIBLE MATCH
GEAR,INTERNAL
Possible match (shared part number)Naval Sea Systems Command
4820-01-422-2300211041091POSSIBLE MATCH
VALVE RELEASE BUTTON
Possible match (shared part number)Naval Sea Systems Command
4820-01-434-7956801-6406709-89POSSIBLE MATCH
INDICATOR,VALVE OPENING
Possible match (shared part number)Naval Sea Systems Command
NSN 3020-01-377-7533 is a Gear,internal, 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 3020-01-377-7533?
NSN 3020-01-377-7533 has 2 manufacturer part numbers on file: 211041102 (Naval Sea Systems Command), 801-6406709 FIND 7 (Naval Sea Systems Command).
What NSN replaces 3020-01-377-7533?
11 possible matches (shared part number, not a government interchangeability claim): 3040-01-377-9309, 3040-01-378-5015, 3020-01-379-3097. Verify interchangeability with system specifications before substitution.
What are the specifications of 211041102?
Key specifications for 211041102: Hub Nominal Diameter: 5.498 INCHES SECOND END IN; Teeth Quantity: 48; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.390 INCHES IN. 17 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-377-7533 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.