PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T552Washer,flat

Caterpillar Inc Div Caterpillar Defense · NSN 5310-00-423-8155 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-423-8155 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-423-8155. Primary manufacturer part number: T552.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Thickness: 0.109 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Material: LEAD OVERALL
  • Hole Diameter: 0.406 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Lead Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-423-8155, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 verified specifications, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-423-8155
Primary Part NumberT552
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Thickness0.109 INCHES NOMINAL IN
Center Hole Shape StyleROUND
MaterialLEAD OVERALL
Hole Diameter0.406 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2940-00-745-7730FD-156 INTERCHANGEABLE
Filter Element,fluid
Ford Motor Craft
5360-01-084-9037T552 INTERCHANGEABLE
Spring
Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County
4910-01-520-8935 INTERCHANGEABLE
Cleaner and Tester,spark Plug
Cross-Reference Index
Part NumberManufacturer
T552 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
2940-00-745-7730INTERCHANGEABLE
FILTER ELEMENT,FLUID
FD-156
5360-01-084-9037INTERCHANGEABLE
SPRING
T552
4910-01-520-8935INTERCHANGEABLE
CLEANER AND TESTER,SPARK PLUG

Frequently Asked Questions

What is NSN 5310-00-423-8155?

NSN 5310-00-423-8155 is a Washer,flat, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-423-8155?

NSN 5310-00-423-8155 has 1 cross-referenced part number: T552 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5310-00-423-8155?

There are 3 known substitutes for 5310-00-423-8155: 2940-00-745-7730, 5360-01-084-9037, 4910-01-520-8935. Verify interchangeability with system specifications before substitution.

What are the specifications of T552?

Key specifications for T552: Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Thickness: 0.109 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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