PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

509Wedge,key

Terex Usa, Llc Dba Terex Equipment Services · NSN 3820-00-125-8645 · FSC 3820 · No Item Name Available
Verified by PartsTable
NSN 3820-00-125-8645 — this item is cataloged by the U.S. Government under National Stock Number 3820-00-125-8645. Primary manufacturer part number: 509.
Features
  • Wedge,key — FSC 3820
  • 2 verified cross-references
  • Primary manufacturer: Terex Usa, Llc Dba Terex Equipment Services
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Wedge,key, cataloged under National Stock Number 3820-00-125-8645, is classified within Federal Supply Class 3820 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Terex Usa, Llc Dba Terex Equipment Services. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWedge,key
FSC / FSG3820 — No Item Name Available (FSG 38)
ManufacturersTerex Usa, Llc Dba Terex Equipment Services (CAGE 31245)
Technical Specifications
ParameterValue
NSN3820-00-125-8645
Primary Part Number509
Item NameWedge,key
FSC / FSG3820 / 38 — No Item Name Available
ManufacturerTerex Usa, Llc Dba Terex Equipment Services
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-5994 INTERCHANGEABLE
Bearing,roller,tapered
5330-00-172-84081482-2 INTERCHANGEABLE
Gasket
Cummins Inc.
5330-00-292-1593102039 INTERCHANGEABLE
Seal,plain Encased
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5945-00-403-54461497 INTERCHANGEABLE
Relay,electromagnetic
Borgwarner Pds (anderson), L.l.c.
5330-00-569-8955160A43 INTERCHANGEABLE
Gasket
Cummins Power Generation Inc.
5331-00-730-66372100 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Div O-Ring Division
5325-00-804-2784 INTERCHANGEABLE
Ring,retaining
5331-00-838-8048N-1000-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-842-92556764920 INTERCHANGEABLE
O-Ring
Tecmotiv (usa), Inc.
5940-00-960-01241497 INTERCHANGEABLE
Terminal,lug
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Cross-Reference Index
Part NumberManufacturer
509 PRIMARY Terex Usa, Llc Dba Terex Equipment Services (USA)
1-497 Terex Usa, Llc Dba Terex Equipment Services (USA)
Related Parts
3110-00-100-5994INTERCHANGEABLE
BEARING,ROLLER,TAPERED
5330-00-172-8408INTERCHANGEABLE
GASKET
1482-2
5330-00-292-1593INTERCHANGEABLE
SEAL,PLAIN ENCASED
102039
5945-00-403-5446INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1497
5330-00-569-8955INTERCHANGEABLE
GASKET
160A43
5331-00-730-6637INTERCHANGEABLE
O-RING
2100
5325-00-804-2784INTERCHANGEABLE
RING,RETAINING
5331-00-838-8048INTERCHANGEABLE
O-RING
N-1000-70
5331-00-842-9255INTERCHANGEABLE
O-RING
6764920
5940-00-960-0124INTERCHANGEABLE
TERMINAL,LUG
1497
6240-00-968-9274INTERCHANGEABLE
LAMP,INCANDESCENT
4320-01-132-4958INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL

Frequently Asked Questions

What is NSN 3820-00-125-8645?

NSN 3820-00-125-8645 is a Wedge,key, manufactured by Terex Usa, Llc Dba Terex Equipment Services, classified under FSC 3820 (No Item Name Available). Status: active.

What are the part numbers for NSN 3820-00-125-8645?

NSN 3820-00-125-8645 has 2 cross-referenced part numbers: 509 (Terex Usa, Llc Dba Terex Equipment Services), 1-497 (Terex Usa, Llc Dba Terex Equipment Services).

What NSN replaces 3820-00-125-8645?

There are 12 known substitutes for 3820-00-125-8645: 3110-00-100-5994, 5330-00-172-8408, 5330-00-292-1593 and 9 more. Verify interchangeability with system specifications before substitution.

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