PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121583Gear,bevel

Fwd Seagrave Holdings Lp · NSN 3020-00-352-6304 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-352-6304 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-352-6304. Primary manufacturer part number: 121583.
Features
  • Gear,bevel — FSC 3020
  • Pitch Diameter: 3.5000 INCHES NOMINAL IN
  • Surface Treatment: PHOSPHATE ZINC OVERALL
  • Teeth Quantity: 14
  • Style Designator: SIDE FACE, HUBLESS
  • Nominal Overall Length: 1.757 INCHES IN
  • Pitch Angle: 30.2499 DEGREES
  • Pressure Angle: 20.0000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,bevel, cataloged under National Stock Number 3020-00-352-6304, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-352-6304
Primary Part Number121583
Item NameGear,bevel
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerFwd Seagrave Holdings Lp
StatusACTIVE
Pitch Diameter3.5000 INCHES NOMINAL IN
Surface TreatmentPHOSPHATE ZINC OVERALL
Teeth Quantity14
Style DesignatorSIDE FACE, HUBLESS
Nominal Overall Length1.757 INCHES IN
Pitch Angle30.2499 DEGREES
Pressure Angle20.0000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.358 INCHES SECOND END IN
MaterialSTEEL OVERALL
Bore Nominal Diameter1.133 INCHES BOTH ENDS IN
Nominal Outside Diameter4.104 INCHES IN
Counterbore Nominal Depth0.031 INCHES COUNTER BORE SECOND END IN
Material Document and Classification66,AISI/SAE 4615 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hardness Rating56.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
Body StylePLAIN, SOLID
Counterbore Nominal Depth0.062 INCHES COUNTERBORE FIRST END IN
Face Nominal Width1.345 INCHES IN
Teeth TypeSTRAIGHT
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5945-00-252-2814SK5001 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
5815-00-392-1839 INTERCHANGEABLE
Bail,extension
5940-01-248-6219121-583 INTERCHANGEABLE
Terminal Board
Tricor Systems Inc
3020-01-377-4019121583 INTERCHANGEABLE
Pulley,groove
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4820-01-427-8464121583 INTERCHANGEABLE
Retainer,disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
121583 PRIMARY Fwd Seagrave Holdings Lp (USA)
Related Parts
5945-00-252-2814INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SK5001
5815-00-392-1839INTERCHANGEABLE
BAIL,EXTENSION
5940-01-248-6219INTERCHANGEABLE
TERMINAL BOARD
121-583
3020-01-377-4019INTERCHANGEABLE
PULLEY,GROOVE
121583
4820-01-427-8464INTERCHANGEABLE
RETAINER,DISK,VALVE
121583

Frequently Asked Questions

What is NSN 3020-00-352-6304?

NSN 3020-00-352-6304 is a Gear,bevel, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-352-6304?

NSN 3020-00-352-6304 has 1 cross-referenced part number: 121583 (Fwd Seagrave Holdings Lp).

What NSN replaces 3020-00-352-6304?

There are 5 known substitutes for 3020-00-352-6304: 5945-00-252-2814, 5815-00-392-1839, 5940-01-248-6219 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121583?

Key specifications for 121583: Pitch Diameter: 3.5000 INCHES NOMINAL IN; Surface Treatment: PHOSPHATE ZINC OVERALL; Teeth Quantity: 14; Style Designator: SIDE FACE, HUBLESS. 19 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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