PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6818Washer,flat

La Chance Ltd · NSN 5310-00-285-1490 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-285-1490 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-285-1490. Primary manufacturer part number: 6818.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
  • Peripheral Shape Style: SQUARE
  • Surface Treatment: CADMIUM OVERALL
  • Center Hole Shape Style: ROUND
  • Thickness: 0.187 INCHES NOMINAL IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-285-1490, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is La Chance Ltd. Government technical data includes 9 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-285-1490
Primary Part Number6818
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLa Chance Ltd
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Hardness Rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Peripheral Shape StyleSQUARE
Surface TreatmentCADMIUM OVERALL
Center Hole Shape StyleROUND
Thickness0.187 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Width Across Flats4.000 INCHES NOMINAL IN
Hole Diameter0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6150-00-111-57696818 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Thomas and Betts Corp Electronics Group
5315-00-246-90246-8-18 INTERCHANGEABLE
Pin,straight,headless
Trailmobile Inc Sub of the Pullman Co
5930-00-258-5452 INTERCHANGEABLE
Handle,switch
4730-00-331-21436818 INTERCHANGEABLE
Plug,pipe
Avox Systems Inc Dba Avox Systems Inc
2530-00-537-9798592256C91 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Dressta North America Ltd
1680-00-594-6443B6818 INTERCHANGEABLE
Connector Assy,tube
Triumph Controls, Llc Dba Triumph Controls, Llc
6510-00-786-37366818- INTERCHANGEABLE
Pad,isopropyl Alcohol Impregnate
Cardinal Health 200, Llc
2530-01-086-8763 INTERCHANGEABLE
Seat,ball Socket
5998-01-264-54606818 INTERCHANGEABLE
Circuit Card Assembly
Video Display Corporation
6530-01-283-65406818 INTERCHANGEABLE
Tube Assembly,respiratory Therap
Bird Products Corp
Cross-Reference Index
Part NumberManufacturer
6818 La Chance Ltd (USA)
Related Parts
6150-00-111-5769INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
6818
5315-00-246-9024INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
6-8-18
5930-00-258-5452INTERCHANGEABLE
HANDLE,SWITCH
4730-00-331-2143INTERCHANGEABLE
PLUG,PIPE
6818
2530-00-537-9798INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
592256C91
1680-00-594-6443INTERCHANGEABLE
CONNECTOR ASSY,TUBE
B6818
6510-00-786-3736INTERCHANGEABLE
PAD,ISOPROPYL ALCOHOL IMPREGNATE
6818-
2530-01-086-8763INTERCHANGEABLE
SEAT,BALL SOCKET
5998-01-264-5460INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6818
6530-01-283-6540INTERCHANGEABLE
TUBE ASSEMBLY,RESPIRATORY THERAP
6818
6510-01-384-4156INTERCHANGEABLE
PAD,ISOPROPYL ALCOHOL IMPREGNATE
191320
6510-01-715-0086INTERCHANGEABLE
PAD,ISOPROPYL ALCOHOL IMPREGNATE

Frequently Asked Questions

What is NSN 5310-00-285-1490?

NSN 5310-00-285-1490 is a Washer,flat, manufactured by La Chance Ltd, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-285-1490?

NSN 5310-00-285-1490 has 1 cross-referenced part number: 6818 (La Chance Ltd).

What NSN replaces 5310-00-285-1490?

There are 12 known substitutes for 5310-00-285-1490: 6150-00-111-5769, 5315-00-246-9024, 5930-00-258-5452 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6818?

Key specifications for 6818: Cross-Sectional Shape Style: RECTANGULAR; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Peripheral Shape Style: SQUARE; Surface Treatment: CADMIUM 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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