PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SE121T SHT 3 FN-31Gear,worm

Tri-Tec Manufacturing Llc · NSN 3020-01-522-4835 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-522-4835 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-522-4835. Primary manufacturer part number: SE121T SHT 3 FN-31.
Features
  • Gear,worm — FSC 3020
  • Bore Style: TAPERED BOTH ENDS
  • 4 verified cross-references
  • Primary manufacturer: Tri-Tec Manufacturing Llc
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,worm, cataloged under National Stock Number 3020-01-522-4835, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Tri-Tec Manufacturing Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-522-4835
Primary Part NumberSE121T SHT 3 FN-31
Item NameGear,worm
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTri-Tec Manufacturing Llc
StatusACTIVE
Bore StyleTAPERED BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6515-01-202-8062300919 INTERCHANGEABLE
Caliper,body Fat
Cambridge Scientific Industries /calipers/div of Diversey Corp
6910-01-727-986730-0919 INTERCHANGEABLE
Training Aid,simulated Blood
Luna Labs Usa Llc
Cross-Reference Index
Part NumberManufacturer
SE121T SHT 3 FN-31 Tri-Tec Manufacturing Llc (USA)
SE121T SHT 3 FN-31 Tri-Tec Manufacturing, Llc (USA)
300919 Tri-Tec Manufacturing, Llc (USA)
300919 Tri-Tec Manufacturing Llc (USA)
Related Parts
6515-01-202-8062INTERCHANGEABLE
CALIPER,BODY FAT
300919
6910-01-727-9867INTERCHANGEABLE
TRAINING AID,SIMULATED BLOOD
30-0919

Frequently Asked Questions

What is NSN 3020-01-522-4835?

NSN 3020-01-522-4835 is a Gear,worm, manufactured by Tri-Tec Manufacturing Llc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-522-4835?

NSN 3020-01-522-4835 has 4 cross-referenced part numbers: SE121T SHT 3 FN-31 (Tri-Tec Manufacturing Llc), SE121T SHT 3 FN-31 (Tri-Tec Manufacturing, Llc), 300919 (Tri-Tec Manufacturing, Llc), 300919 (Tri-Tec Manufacturing Llc).

What NSN replaces 3020-01-522-4835?

There are 2 known substitutes for 3020-01-522-4835: 6515-01-202-8062, 6910-01-727-9867. Verify interchangeability with system specifications before substitution.

What are the specifications of SE121T SHT 3 FN-31?

Key specifications for SE121T SHT 3 FN-31: Special Features: WORM GEAR, 50T 3 125 PD, CONE CLUTCH; SPEC: ASTM-B-138 MATT: C67500; Bore Style: TAPERED BOTH ENDS; End Item Identification: MIXER. 3 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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