PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1678Pressure Plate Assembly,clutch

Atwood Industries Inc Automotive Div · NSN 2520-00-563-8229 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-563-8229 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-563-8229. Primary manufacturer part number: 1678.
Features
  • Pressure Plate Assembly,clutch — FSC 2520
  • Overall Diameter: 17.990 INCHES MINIMUM AND 18.000 INCHES MAXIMUM IN
  • Material: STEEL
  • 2 verified cross-references
  • Primary manufacturer: Atwood Industries Inc Automotive Div
Applications
  • Applications requiring Steel construction
General Description

The Pressure Plate Assembly,clutch, cataloged under National Stock Number 2520-00-563-8229, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Atwood Industries Inc Automotive Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-563-8229
Primary Part Number1678
Item NamePressure Plate Assembly,clutch
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerAtwood Industries Inc Automotive Div
StatusACTIVE
Overall Diameter17.990 INCHES MINIMUM AND 18.000 INCHES MAXIMUM IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4540-00-169-5703200435 INTERCHANGEABLE
Parts Kit,seal
Itw Food Equipment Group Llc Dba Hobart Service
5940-00-204-7907167-169 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
5330-00-362-102874350657 INTERCHANGEABLE
Gasket
Agco Corp Parts Opn
2040-00-385-8863 INTERCHANGEABLE
Plate,support
2940-00-432-17611CF8 INTERCHANGEABLE
Filter Element,fluid
Oshkosh Defense Llc
5310-00-858-45871678 INTERCHANGEABLE
Nut
Parker-Hannifin Corporation Dba Control Systems Division
5815-00-975-9790 INTERCHANGEABLE
Arm
6145-01-160-4623424-0238-400 INTERCHANGEABLE
Cable,power,electrical
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5940-01-187-9918 INTERCHANGEABLE
Terminal Board
6515-01-611-5948N2252 INTERCHANGEABLE
Knife,nasal
Buffalo Supply Inc.
Cross-Reference Index
Part NumberManufacturer
5638229 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
1678 PRIMARY Atwood Industries Inc Automotive Div (USA)
Related Parts
4540-00-169-5703INTERCHANGEABLE
PARTS KIT,SEAL
200435
5940-00-204-7907INTERCHANGEABLE
TERMINAL,LUG
167-169
5330-00-362-1028INTERCHANGEABLE
GASKET
74350657
2040-00-385-8863INTERCHANGEABLE
PLATE,SUPPORT
2940-00-432-1761INTERCHANGEABLE
FILTER ELEMENT,FLUID
1CF8
5310-00-858-4587INTERCHANGEABLE
NUT
1678
5815-00-975-9790INTERCHANGEABLE
ARM
6145-01-160-4623INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
424-0238-400
5940-01-187-9918INTERCHANGEABLE
TERMINAL BOARD
6515-01-611-5948INTERCHANGEABLE
KNIFE,NASAL
N2252

Frequently Asked Questions

What is NSN 2520-00-563-8229?

NSN 2520-00-563-8229 is a Pressure Plate Assembly,clutch, manufactured by Atwood Industries Inc Automotive Div, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-563-8229?

NSN 2520-00-563-8229 has 2 cross-referenced part numbers: 5638229 (U S Army Tank Automotive Command Amsta-Im-Mm), 1678 (Atwood Industries Inc Automotive Div).

What NSN replaces 2520-00-563-8229?

There are 10 known substitutes for 2520-00-563-8229: 4540-00-169-5703, 5940-00-204-7907, 5330-00-362-1028 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1678?

Key specifications for 1678: Special Features: 1.020 IN. THK;8.873/8.877 IN. ID IN; Overall Diameter: 17.990 INCHES MINIMUM AND 18.000 INCHES MAXIMUM IN; Material: STEEL. 3 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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