PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40227Washer,flat

Danuser Machine Co · NSN 5310-00-574-0435 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-574-0435 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-574-0435. Primary manufacturer part number: 40227.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.531 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL OVERALL
  • Center Hole Shape Style: ROUND
  • Thickness: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Overall Diameter: 1.812 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
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 5310-00-574-0435, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Danuser Machine Co. Government technical data includes 8 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-574-0435
Primary Part Number40227
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDanuser Machine Co
StatusACTIVE
Hole Diameter0.531 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL OVERALL
Center Hole Shape StyleROUND
Thickness0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Overall Diameter1.812 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3455-00-243-185158-10089 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
1680-00-608-311140227 INTERCHANGEABLE
Insert,actuator Tub
Honeywell International Inc. Div Aerospace - Torrance
6685-00-910-697645-1379AS-02L-0/200 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
1730-01-105-1476 INTERCHANGEABLE
Cover Assembly,winc
4130-01-221-780540227 INTERCHANGEABLE
Filter Element,air Conditioning
University of Washington Div Applied Physics Laboratory
5962-01-225-675540227 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
3040-01-240-295340227 INTERCHANGEABLE
Shaft,shouldered
Reidville Hydraulics & Mfg Inc
4010-01-347-967440227 INTERCHANGEABLE
Wire Rope Assembly,single Leg
The Boeing Company
Cross-Reference Index
Part NumberManufacturer
40227 PRIMARY Danuser Machine Co (USA)
Related Parts
3455-00-243-1851INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10089
1680-00-608-3111INTERCHANGEABLE
INSERT,ACTUATOR TUB
40227
6685-00-910-6976INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1379AS-02L-0/200
1730-01-105-1476INTERCHANGEABLE
COVER ASSEMBLY,WINC
4130-01-221-7805INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
40227
5962-01-225-6755INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
40227
3040-01-240-2953INTERCHANGEABLE
SHAFT,SHOULDERED
40227
4010-01-347-9674INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
40227

Frequently Asked Questions

What is NSN 5310-00-574-0435?

NSN 5310-00-574-0435 is a Washer,flat, manufactured by Danuser Machine Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-574-0435?

NSN 5310-00-574-0435 has 1 cross-referenced part number: 40227 (Danuser Machine Co).

What NSN replaces 5310-00-574-0435?

There are 8 known substitutes for 5310-00-574-0435: 3455-00-243-1851, 1680-00-608-3111, 6685-00-910-6976 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40227?

Key specifications for 40227: Hole Diameter: 0.531 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Special Features: 0.0125 IN. RADIUS ON ONE EDGE OF OD IN; Material: STEEL OVERALL. 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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