PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22325Washer,flat

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5310-01-188-6743 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-188-6743 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-188-6743. Primary manufacturer part number: 22325.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
  • Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
  • Material: STEEL COMP 1095 OVERALL
  • Overall Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Thickness: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1095 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-188-6743, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 8 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-188-6743
Primary Part Number22325
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Hole Diameter0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
Hardness Rating47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
MaterialSTEEL COMP 1095 OVERALL
Overall Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Thickness0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-053922325 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3930-00-359-4163306283 INTERCHANGEABLE
Ring
Mitsubishi Caterpillar Forklift America, Inc
1005-00-437-4748 INTERCHANGEABLE
Locking Block Assem
5960-00-834-8112GC10D INTERCHANGEABLE
Electron Tube
Thermo Jarrell Ash Corp Baird Div
5330-00-887-582222325 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5365-01-057-071522325 INTERCHANGEABLE
Spacer,sleeve
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
3110-01-276-2740 INTERCHANGEABLE
Ball,bearing
5310-01-303-532822325 INTERCHANGEABLE
Nut,plain,hexagon
Barksdale, Inc
4140-01-604-6613 INTERCHANGEABLE
Shroud,fan,axial
Cross-Reference Index
Part NumberManufacturer
22325 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
5310011886743 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
3110-00-100-0539INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
22325
3930-00-359-4163INTERCHANGEABLE
RING
306283
1005-00-437-4748INTERCHANGEABLE
LOCKING BLOCK ASSEM
5960-00-834-8112INTERCHANGEABLE
ELECTRON TUBE
GC10D
5330-00-887-5822INTERCHANGEABLE
SEAL,PLAIN ENCASED
22325
5365-01-057-0715INTERCHANGEABLE
SPACER,SLEEVE
22325
3110-01-276-2740INTERCHANGEABLE
BALL,BEARING
5310-01-303-5328INTERCHANGEABLE
NUT,PLAIN,HEXAGON
22325
4140-01-604-6613INTERCHANGEABLE
SHROUD,FAN,AXIAL

Frequently Asked Questions

What is NSN 5310-01-188-6743?

NSN 5310-01-188-6743 is a Washer,flat, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-188-6743?

NSN 5310-01-188-6743 has 2 cross-referenced part numbers: 22325 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 5310011886743 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales).

What NSN replaces 5310-01-188-6743?

There are 9 known substitutes for 5310-01-188-6743: 3110-00-100-0539, 3930-00-359-4163, 1005-00-437-4748 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22325?

Key specifications for 22325: Hole Diameter: 0.315 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN; Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Material: STEEL COMP 1095 OVERALL; Overall Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN. 8 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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