PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

623863Washer,flat

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-111-2184 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-111-2184 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-111-2184. Primary manufacturer part number: 623863.
Features
  • Washer,flat — FSC 5310
  • Material Document and Classification: AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Heat Treatment: AS FABRICATED
  • Surface Finish: 63.0 MICROINCHES TOP
  • Hole Diameter: 0.255 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Surface Treatment: CADMIUM OVERALL
  • Material: STEEL COMP 4130 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4130 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-111-2184, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-111-2184
Primary Part Number623863
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Material Document and ClassificationAMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Heat TreatmentAS FABRICATED
Surface Finish63.0 MICROINCHES TOP
Hole Diameter0.255 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL COMP 4130 OVERALL
Surface Finish63.0 MICROINCHES BOTTOM
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Peripheral Shape StyleROUND
Thickness0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
Hardness Rating35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
Center Hole Shape StyleROUND
Overall Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6220-00-005-14366090 INTERCHANGEABLE
Panel,indicating,light Transmitt
Rosemount Inc Dba Fisher Rosemount Service and Support
5940-00-068-90941431-4-5 INTERCHANGEABLE
Terminal,feedthru
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5330-00-202-4450RW28051107 INTERCHANGEABLE
Gasket
R-Way Gasket & Supply Co Inc
2910-00-384-8307C181-295 INTERCHANGEABLE
Gasket Set,carburet
Zenith Fuel Systems Llc
6105-00-617-09576090 INTERCHANGEABLE
Motor,control
Dumore Corporation
5305-00-688-1456133049 INTERCHANGEABLE
Screw,machine
Chrysler Realty Company Llc Dba Daimler Chrysler
5305-00-988-1727160717 INTERCHANGEABLE
Screw,machine
General Motors Llc Dba General Motors Llc
5930-01-012-7998 INTERCHANGEABLE
Switch,sensitive
5962-01-082-8447581R856H01 INTERCHANGEABLE
Microcircuit,linear
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5930-01-172-9735 INTERCHANGEABLE
Switch,push
Cross-Reference Index
Part NumberManufacturer
6090 Eaton Aerospace, Llc Dba Jackson South (USA)
623863 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
6220-00-005-1436INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
6090
5940-00-068-9094INTERCHANGEABLE
TERMINAL,FEEDTHRU
1431-4-5
5330-00-202-4450INTERCHANGEABLE
GASKET
RW28051107
2910-00-384-8307INTERCHANGEABLE
GASKET SET,CARBURET
C181-295
6105-00-617-0957INTERCHANGEABLE
MOTOR,CONTROL
6090
5305-00-688-1456INTERCHANGEABLE
SCREW,MACHINE
133049
5305-00-988-1727INTERCHANGEABLE
SCREW,MACHINE
160717
5930-01-012-7998INTERCHANGEABLE
SWITCH,SENSITIVE
5962-01-082-8447INTERCHANGEABLE
MICROCIRCUIT,LINEAR
581R856H01
5930-01-172-9735INTERCHANGEABLE
SWITCH,PUSH
5330-01-218-2985INTERCHANGEABLE
KIT REPAIR
3657-49-1
3110-01-330-3385INTERCHANGEABLE
CONE,TAPERED ROLLER BEARING
39586

Frequently Asked Questions

What is NSN 5310-00-111-2184?

NSN 5310-00-111-2184 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-111-2184?

NSN 5310-00-111-2184 has 2 cross-referenced part numbers: 6090 (Eaton Aerospace, Llc Dba Jackson South), 623863 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-111-2184?

There are 12 known substitutes for 5310-00-111-2184: 6220-00-005-1436, 5940-00-068-9094, 5330-00-202-4450 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 623863?

Key specifications for 623863: Material Document and Classification: AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Heat Treatment: AS FABRICATED; Surface Finish: 63.0 MICROINCHES TOP; Hole Diameter: 0.255 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-111-2184 still in active supply?

NSN 5310-00-111-2184 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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