NSN 3020-01-495-3450 · NIIN 014953450 · Part number 581-6985418-15
Naval Sea Systems Command · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3020-01-495-3450 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-495-3450. Manufacturer of record part number: 581-6985418-15.
Also searched as3020-01-495-3450 ·
3020014953450 ·
NIIN 014953450 ·
01-495-3450 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 53711 · 581-6985418-15 · H611-1402 · H611-1402-15 · 6985418
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 581-6985418-15
Manufacturer: Naval Sea Systems Command
General Description
The Gear Assembly,worm, cataloged under National Stock Number 3020-01-495-3450, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
3020-01-495-3450
Primary Part Number
581-6985418-15
Item Name
Gear Assembly,worm
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 A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3010-01-495-4142581-6985418-2POSSIBLE MATCH
COUPLING HALF,SHAFT
Possible match (shared part number)Naval Sea Systems Command
2520-01-495-6422EB211031557POSSIBLE MATCH
SLEEVE,SLIDING,MECHANICAL TRANSM
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4320-01-495-8136581-6985418-A5POSSIBLE MATCH
MOTOR,HYDRAULIC
Possible match (shared part number)Naval Sea Systems Command
3040-01-496-0498581-6985418-70POSSIBLE MATCH
LEVER,REMOTE CONTROL
Possible match (shared part number)Naval Sea Systems Command
5970-01-500-3573581-6985418-58POSSIBLE MATCH
INSULATOR,BUSHING
Possible match (shared part number)Naval Sea Systems Command
NSN 3020-01-495-3450 is a Gear Assembly,worm, 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 3020-01-495-3450?
NSN 3020-01-495-3450 has 1 manufacturer part number on file: 581-6985418-15 (Naval Sea Systems Command).
What NSN replaces 3020-01-495-3450?
5 possible matches (shared part number, not a government interchangeability claim): 3010-01-495-4142, 2520-01-495-6422, 4320-01-495-8136. Verify interchangeability with system specifications before substitution.
What are the specifications of 581-6985418-15?
Key specifications for 581-6985418-15: End Item Identification: GEAR ASSY DRI,LOS ANGELES CLASS SSN(688). 0 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-495-3450 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.