PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A4891Hub and Back Plate

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 2520-01-104-3482 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-01-104-3482 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-104-3482. Primary manufacturer part number: A4891.
Features
  • Hub and Back Plate — FSC 2520
  • 4 verified cross-references
  • Primary manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Hub and Back Plate, cataloged under National Stock Number 2520-01-104-3482, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. This item has 4 commercial cross-references from 3 manufacturers, 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 NameHub and Back Plate
FSC / FSG2520 — No Item Name Available (FSG 25)
ManufacturersOshkosh Defense Llc (CAGE 75Q65); Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208); Oshkosh Corp (CAGE 45152)
Technical Specifications
ParameterValue
NSN2520-01-104-3482
Primary Part NumberA4891
Item NameHub and Back Plate
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-353-299312203 INTERCHANGEABLE
Bellows,protection
Tld Wollard Llc
4420-00-360-21078508408 INTERCHANGEABLE
Core Assembly,fluid Cooler
General Motors Corp
2520-01-104-3481A1535 INTERCHANGEABLE
Finger Lever
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
3020-01-104-3483B6071 INTERCHANGEABLE
Gear,drive Motion
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
3040-01-104-4600X117-C-8A INTERCHANGEABLE
Collar,shaft
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2520-01-104-4601B1293 INTERCHANGEABLE
Lever
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2520-01-104-4602A4249A INTERCHANGEABLE
Floating Plate
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2520-01-104-46033790H INTERCHANGEABLE
Driven Plate
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2520-01-104-4604A3383F INTERCHANGEABLE
Driver Plate
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2520-01-104-4606XB6111 INTERCHANGEABLE
Plate,power Takeoff
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Cross-Reference Index
Part NumberManufacturer
1TD719 Oshkosh Defense Llc (USA)
A4891 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
X9816J Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
1TD719 Oshkosh Corp (USA)
Related Parts
5340-00-353-2993INTERCHANGEABLE
BELLOWS,PROTECTION
12203
4420-00-360-2107INTERCHANGEABLE
CORE ASSEMBLY,FLUID COOLER
8508408
2520-01-104-3481INTERCHANGEABLE
FINGER LEVER
A1535
3020-01-104-3483INTERCHANGEABLE
GEAR,DRIVE MOTION
B6071
3040-01-104-4600INTERCHANGEABLE
COLLAR,SHAFT
X117-C-8A
2520-01-104-4601INTERCHANGEABLE
LEVER
B1293
2520-01-104-4602INTERCHANGEABLE
FLOATING PLATE
A4249A
2520-01-104-4603INTERCHANGEABLE
DRIVEN PLATE
3790H
2520-01-104-4604INTERCHANGEABLE
DRIVER PLATE
A3383F
2520-01-104-4606INTERCHANGEABLE
PLATE,POWER TAKEOFF
XB6111
2520-01-104-4607INTERCHANGEABLE
SHAFT ASSEMBLY
XB5962A
2520-01-104-4618INTERCHANGEABLE
REVERSE SHAFT ASSEM
XB5963A

Frequently Asked Questions

What is NSN 2520-01-104-3482?

NSN 2520-01-104-3482 is a Hub and Back Plate, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-01-104-3482?

NSN 2520-01-104-3482 has 4 cross-referenced part numbers: 1TD719 (Oshkosh Defense Llc), A4891 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), X9816J (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 1TD719 (Oshkosh Corp).

What NSN replaces 2520-01-104-3482?

There are 12 known substitutes for 2520-01-104-3482: 5340-00-353-2993, 4420-00-360-2107, 2520-01-104-3481 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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