PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9L76Gear Cluster

Dynalec Corporation · NSN 3020-00-661-2084 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-661-2084 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-661-2084. Primary manufacturer part number: 9L76.
Features
  • Gear Cluster — FSC 3020
  • Material: COPPER ALLOY OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Overall Length: 0.312 INCHES IN
  • Nominal Outside Diameter: 0.500 INCHES SECOND GEAR IN
  • Construction: ASSEMBLED
  • Design Type: SPUR FIRST GEAR
  • Nominal Outside Diameter: 1.375 INCHES FIRST GEAR IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-661-2084, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dynalec Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-661-2084
Primary Part Number9L76
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerDynalec Corporation
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Bore StylePLAIN BOTH ENDS
Nominal Overall Length0.312 INCHES IN
Nominal Outside Diameter0.500 INCHES SECOND GEAR IN
ConstructionASSEMBLED
Design TypeSPUR FIRST GEAR
Nominal Outside Diameter1.375 INCHES FIRST GEAR IN
Design TypeSPUR SECOND GEAR
Bore Nominal Diameter0.688 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5310-00-188-7938 INTERCHANGEABLE
Nut,plain,blind Rivet
5360-00-266-4910A675 INTERCHANGEABLE
Spring,helical,compression
Crane Co Div Valve Div
3439-00-372-4776AWSA5.18-79 E70S-3 0.045 12LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-593-2241AWSA5.18-79 E70S-3 0.035 2-1/2LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-602-1544 INTERCHANGEABLE
Electrode,welding
5120-00-761-8109A675 INTERCHANGEABLE
Extractor
Ametek Inc Div Aerospace and Defense
3439-01-012-1003ER70S-3 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-01-013-2800 INTERCHANGEABLE
Electrode,welding
2530-01-176-0562205-1012-001 INTERCHANGEABLE
Housing,steering Column
Macleod Inc
4320-01-182-6929A675 INTERCHANGEABLE
Propeller,centrifugal Pump
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
9L76 PRIMARY Dynalec Corporation (USA)
A675 The Electric Tachometer Corp. (USA)
UL9102-1PC46-47 Naval Ship Systems Command (USA)
UL9102-1PC46-47 Naval Sea Systems Command (USA)
Related Parts
5310-00-188-7938INTERCHANGEABLE
NUT,PLAIN,BLIND RIVET
5360-00-266-4910INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A675
3439-00-372-4776INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.18-79 E70S-3 0.045 12LB
3439-00-593-2241INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.18-79 E70S-3 0.035 2-1/2LB
3439-00-602-1544INTERCHANGEABLE
ELECTRODE,WELDING
5120-00-761-8109INTERCHANGEABLE
EXTRACTOR
A675
3439-01-012-1003INTERCHANGEABLE
ELECTRODE,WELDING
ER70S-3
3439-01-013-2800INTERCHANGEABLE
ELECTRODE,WELDING
2530-01-176-0562INTERCHANGEABLE
HOUSING,STEERING COLUMN
205-1012-001
4320-01-182-6929INTERCHANGEABLE
PROPELLER,CENTRIFUGAL PUMP
A675

Frequently Asked Questions

What is NSN 3020-00-661-2084?

NSN 3020-00-661-2084 is a Gear Cluster, manufactured by Dynalec Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-661-2084?

NSN 3020-00-661-2084 has 4 cross-referenced part numbers: 9L76 (Dynalec Corporation), A675 (The Electric Tachometer Corp.), UL9102-1PC46-47 (Naval Ship Systems Command), UL9102-1PC46-47 (Naval Sea Systems Command).

What NSN replaces 3020-00-661-2084?

There are 10 known substitutes for 3020-00-661-2084: 5310-00-188-7938, 5360-00-266-4910, 3439-00-372-4776 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9L76?

Key specifications for 9L76: Material: COPPER ALLOY OVERALL; Bore Style: PLAIN BOTH ENDS; Nominal Overall Length: 0.312 INCHES IN; Nominal Outside Diameter: 0.500 INCHES SECOND GEAR IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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