PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25556Clutch Assembly,friction

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 2520-00-930-3309 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-930-3309 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-930-3309. Primary manufacturer part number: 25556.
Features
  • Clutch Assembly,friction — FSC 2520
  • 2 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 Clutch Assembly,friction, cataloged under National Stock Number 2520-00-930-3309, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-930-3309
Primary Part Number25556
Item NameClutch Assembly,friction
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1650-00-397-568525556 INTERCHANGEABLE
Slide,directional Control Linear
Meggitt North Hollywood Inc
4720-00-676-79362556-6 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5935-00-809-0786 INTERCHANGEABLE
Clamp,cable,electrical Connector
3040-00-998-731464-032-36 INTERCHANGEABLE
Control Assembly,push-Pull
B.w. Elliott Manufacturing Co., Llc
3020-01-449-2028 INTERCHANGEABLE
Gear,spur
Cross-Reference Index
Part NumberManufacturer
25556 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
X8249 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
1650-00-397-5685INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
25556
4720-00-676-7936INTERCHANGEABLE
HOSE,NONMETALLIC
2556-6
5935-00-809-0786INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
3040-00-998-7314INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
64-032-36
3020-01-449-2028INTERCHANGEABLE
GEAR,SPUR

Frequently Asked Questions

What is NSN 2520-00-930-3309?

NSN 2520-00-930-3309 is a Clutch Assembly,friction, 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 2520-00-930-3309?

NSN 2520-00-930-3309 has 2 cross-referenced part numbers: 25556 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), X8249 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What NSN replaces 2520-00-930-3309?

There are 5 known substitutes for 2520-00-930-3309: 1650-00-397-5685, 4720-00-676-7936, 5935-00-809-0786 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25556?

Key specifications for 25556: Special Features: HAND LEVER RELEASE CONTROL;DRY TYPE;FOR PTO APPLICATION. 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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