NSN 3020-01-503-1561 · NIIN 015031561 · Part number 596-7410507-A3
Naval Sea Systems Command · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3020-01-503-1561 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-503-1561. Manufacturer of record part number: 596-7410507-A3.
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 596-7410507-A3
Manufacturer: Naval Sea Systems Command
General Description
The Gear Set,bevel,matched, cataloged under National Stock Number 3020-01-503-1561, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 Set,bevel,matched
FSC / FSG
3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30)
Manufacturers
Naval Sea Systems Command (CAGE 53711)
Technical Specifications
Parameter
Value
NSN
3020-01-503-1561
Primary Part Number
596-7410507-A3
Item Name
Gear Set,bevel,matched
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL B — Remove Demilitarization Key Points
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3010-01-503-2081B434-5410-A1POSSIBLE MATCH
GEAR BOX ASSY
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3010-01-503-3377596-7410332-A2POSSIBLE MATCH
CARRIER,GEAR ASSEMBLY
Possible match (shared part number)Naval Sea Systems Command
3010-01-503-3388596-7410332-A3POSSIBLE MATCH
CARRIER,GEAR ASSEMBLY
Possible match (shared part number)Naval Sea Systems Command
3040-01-503-7426596-7410507-5POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-503-7465596-7410507-6POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-503-7500596-7410507-7POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-504-0608596-7410507-17POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
NSN 3020-01-503-1561 is a Gear Set,bevel,matched, 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 3020-01-503-1561?
NSN 3020-01-503-1561 has 2 manufacturer part numbers on file: 596-7410507-A3 (Naval Sea Systems Command), 596-7410332-3 (Naval Sea Systems Command).
What NSN replaces 3020-01-503-1561?
7 possible matches (shared part number, not a government interchangeability claim): 3010-01-503-2081, 3010-01-503-3377, 3010-01-503-3388. Verify interchangeability with system specifications before substitution.
Is NSN 3020-01-503-1561 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 3020-01-503-1561?
NSN 3020-01-503-1561 has DEMIL Code B. 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.