PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18880Washer,flat

Ferguson Gear Opn Boston Gear Div Imo Industries Inc · NSN 5310-01-625-5306 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-625-5306 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-625-5306. Primary manufacturer part number: 18880.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 2.0 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.125 INCHES NOMINAL IN
  • Hole Diameter: 1.0 INCHES NOMINAL IN
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-625-5306, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ferguson Gear Opn Boston Gear Div Imo Industries Inc. 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
NSN5310-01-625-5306
Primary Part Number18880
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFerguson Gear Opn Boston Gear Div Imo Industries Inc
StatusACTIVE
Peripheral Shape StyleROUND
Overall Diameter2.0 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.125 INCHES NOMINAL IN
Hole Diameter1.0 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-295-64037321299 INTERCHANGEABLE
Connector,receptacle,electrical
U S Army Tank Automotive Command Amsta-Im-Mm
5310-00-431-700218880L1 INTERCHANGEABLE
Washer,flat
Altra Industrial Motion Corp.
6105-01-030-926118880 INTERCHANGEABLE
Disk,adjusting
Safran Power Usa Llc
Cross-Reference Index
Part NumberManufacturer
18880 PRIMARY Ferguson Gear Opn Boston Gear Div Imo Industries Inc (USA)
Related Parts
5935-00-295-6403INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7321299
5310-00-431-7002INTERCHANGEABLE
WASHER,FLAT
18880L1
6105-01-030-9261INTERCHANGEABLE
DISK,ADJUSTING
18880

Frequently Asked Questions

What is NSN 5310-01-625-5306?

NSN 5310-01-625-5306 is a Washer,flat, manufactured by Ferguson Gear Opn Boston Gear Div Imo Industries Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-625-5306?

NSN 5310-01-625-5306 has 1 cross-referenced part number: 18880 (Ferguson Gear Opn Boston Gear Div Imo Industries Inc).

What NSN replaces 5310-01-625-5306?

There are 3 known substitutes for 5310-01-625-5306: 5935-00-295-6403, 5310-00-431-7002, 6105-01-030-9261. Verify interchangeability with system specifications before substitution.

What are the specifications of 18880?

Key specifications for 18880: End Item Identification: N00019&72&C&0; Peripheral Shape Style: ROUND; Overall Diameter: 2.0 INCHES NOMINAL IN; Center Hole Shape Style: ROUND. 9 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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