PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

556844Shifter Fork,vehicular

Spalla Inc · NSN 2520-00-624-1339 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-624-1339 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-624-1339. Primary manufacturer part number: 556844.
Features
  • Shifter Fork,vehicular — FSC 2520
  • Features Provided: CASEHARDENED PAD
  • Mounting Hole Size: 0.594 INCHES NOMINAL IN
  • Fork End Width: 0.228 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
  • Material: STEEL
  • 3 verified cross-references
  • Primary manufacturer: Spalla Inc
Applications
  • Applications requiring Steel construction
General Description

The Shifter Fork,vehicular, cataloged under National Stock Number 2520-00-624-1339, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Spalla Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-624-1339
Primary Part Number556844
Item NameShifter Fork,vehicular
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerSpalla Inc
StatusACTIVE
Features ProvidedCASEHARDENED PAD
Mounting Hole Size0.594 INCHES NOMINAL IN
Fork End Width0.228 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2520-00-378-724227118H INTERCHANGEABLE
Shifter Fork,vehicular
Navistar Intl Corp Truck Br Ohio Plant
5999-00-677-872130857A INTERCHANGEABLE
Magnet,permanent
Ugimac Inc
3940-01-136-6187 INTERCHANGEABLE
Block,tackle
Cross-Reference Index
Part NumberManufacturer
556844 Spalla Inc (USA)
T8-51 Cleveland Formgrading Co (USA)
DC1207 American Standard Inc Westinghouse Air Brake Co Div (USA)
Related Parts
2520-00-378-7242INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
27118H
5999-00-677-8721INTERCHANGEABLE
MAGNET,PERMANENT
30857A
3940-01-136-6187INTERCHANGEABLE
BLOCK,TACKLE

Frequently Asked Questions

What is NSN 2520-00-624-1339?

NSN 2520-00-624-1339 is a Shifter Fork,vehicular, manufactured by Spalla Inc, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-624-1339?

NSN 2520-00-624-1339 has 3 cross-referenced part numbers: 556844 (Spalla Inc), T8-51 (Cleveland Formgrading Co), DC1207 (American Standard Inc Westinghouse Air Brake Co Div).

What NSN replaces 2520-00-624-1339?

There are 3 known substitutes for 2520-00-624-1339: 2520-00-378-7242, 5999-00-677-8721, 3940-01-136-6187. Verify interchangeability with system specifications before substitution.

What are the specifications of 556844?

Key specifications for 556844: Features Provided: CASEHARDENED PAD; Special Features: BORE LENGTH: 2.000 IN. NOMINAL; FORK SURFACE FINISH AND LOCATION: GROUND FINISH ON PADS; DISTANCE FROM MOUNTING FACILITY CENTERLINE TO ARCH CENTERLINE: 3.484 IN. NOMINAL; ARCH INSIDE RADIUS: 0.813 IN. NOMINAL; FSC APPLICATION DATA: REVERSE SPEED, TRANSMISSION IN; Overall Width: 3.813 INCHES NOMINAL IN; Mounting Hole Size: 0.594 INCHES NOMINAL IN. 7 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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