PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A4455Sleeve,sliding

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 2520-00-434-4411 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-434-4411 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-434-4411. Primary manufacturer part number: A4455.
Features
  • Sleeve,sliding — FSC 2520
  • General Characteristics Item Description: STEEL,2.625 IN. O/A LG,BEARING SURFACE 2.562 IN. OD,BACK HOUSING 3.078 IN. OD,1.500 IN. ID,4 TABS W/HOLE 0.312 IN. DIA IN
  • 1 verified cross-reference
  • 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 Sleeve,sliding, cataloged under National Stock Number 2520-00-434-4411, 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. Government technical data includes 1 verified specification, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-434-4411
Primary Part NumberA4455
Item NameSleeve,sliding
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
General Characteristics Item DescriptionSTEEL,2.625 IN. O/A LG,BEARING SURFACE 2.562 IN. OD,BACK HOUSING 3.078 IN. OD,1.500 IN. ID,4 TABS W/HOLE 0.312 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4320-01-123-38484455 14110 INTERCHANGEABLE
Deflector,dirt and Liquid
The Gorman-Rupp Company Div Gorman-Rupp
Cross-Reference Index
Part NumberManufacturer
A4455 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
4320-01-123-3848INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
4455 14110

Frequently Asked Questions

What is NSN 2520-00-434-4411?

NSN 2520-00-434-4411 is a Sleeve,sliding, 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 2520-00-434-4411?

NSN 2520-00-434-4411 has 1 cross-referenced part number: A4455 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What NSN replaces 2520-00-434-4411?

There is 1 known substitute for 2520-00-434-4411: 4320-01-123-3848. Verify interchangeability with system specifications before substitution.

What are the specifications of A4455?

Key specifications for A4455: General Characteristics Item Description: STEEL,2.625 IN. O/A LG,BEARING SURFACE 2.562 IN. OD,BACK HOUSING 3.078 IN. OD,1.500 IN. ID,4 TABS W/HOLE 0.312 IN. DIA IN. 1 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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