PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2K3631Spider and Bearing

Caterpillar Inc Div Caterpillar Defense · NSN 3830-00-738-8727 · FSC 3830 · No Item Name Available
Verified by PartsTable
NSN 3830-00-738-8727 — this item is cataloged by the U.S. Government under National Stock Number 3830-00-738-8727. Primary manufacturer part number: 2K3631.
Features
  • Spider and Bearing — FSC 3830
  • 2 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Spider and Bearing, cataloged under National Stock Number 3830-00-738-8727, is classified within Federal Supply Class 3830 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSpider and Bearing
FSC / FSG3830 — No Item Name Available (FSG 38)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083); Motive Parts Co of America Inc (CAGE 83778)
Technical Specifications
ParameterValue
NSN3830-00-738-8727
Primary Part Number2K3631
Item NameSpider and Bearing
FSC / FSG3830 / 38 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4010-00-272-8812 INTERCHANGEABLE
Chain,bead
5340-00-408-9113 INTERCHANGEABLE
Bracket,mounting
5961-00-893-6761 INTERCHANGEABLE
Semiconductor Device,diode
5330-00-946-0103A1805N560 INTERCHANGEABLE
Seal,plain Encased
Meritor Industrial Products, Llc
5985-01-064-181815177 INTERCHANGEABLE
Anvil
Dayton-Granger, Inc.
5342-01-248-968135500-0363 INTERCHANGEABLE
Hook,special
Middleby Marshall Inc Conveyor Ovens and Mixers Div
6105-01-310-793915177 INTERCHANGEABLE
Armature,motor
Brunswick Corp Us Marine Div
4931-01-503-960915177 INTERCHANGEABLE
Test Set,laser Range Finder
Santa Barbara Infrared, Inc. Dba Santa Barbara Infrared Inc
Cross-Reference Index
Part NumberManufacturer
2K3631 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
15177 Motive Parts Co of America Inc (USA)
Related Parts
4010-00-272-8812INTERCHANGEABLE
CHAIN,BEAD
5340-00-408-9113INTERCHANGEABLE
BRACKET,MOUNTING
5961-00-893-6761INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5330-00-946-0103INTERCHANGEABLE
SEAL,PLAIN ENCASED
A1805N560
5985-01-064-1818INTERCHANGEABLE
ANVIL
15177
5342-01-248-9681INTERCHANGEABLE
HOOK,SPECIAL
35500-0363
6105-01-310-7939INTERCHANGEABLE
ARMATURE,MOTOR
15177
4931-01-503-9609INTERCHANGEABLE
TEST SET,LASER RANGE FINDER
15177

Frequently Asked Questions

What is NSN 3830-00-738-8727?

NSN 3830-00-738-8727 is a Spider and Bearing, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3830 (No Item Name Available). Status: active.

What are the part numbers for NSN 3830-00-738-8727?

NSN 3830-00-738-8727 has 2 cross-referenced part numbers: 2K3631 (Caterpillar Inc Div Caterpillar Defense), 15177 (Motive Parts Co of America Inc).

What NSN replaces 3830-00-738-8727?

There are 8 known substitutes for 3830-00-738-8727: 4010-00-272-8812, 5340-00-408-9113, 5961-00-893-6761 and 5 more. Verify interchangeability with system specifications before substitution.

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