18640PC8
Key Washer
This page provides complete and verified information for part number 18640PC8, NSN 5310-00-226-5978
You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-226-5978
Item Name Code
01869
Assigment Date
01/01/1961 (65 years ago)
1.110 inches minimum and 1.140 inches maximum outside diameter, 0.156 inches minimum and 0.176 inches maximum internal prebent key width, 0.801 inches minimum and 0.816 inches maximum hole diameter, 0.062 inches minimum and 0.093 inches maximum internal prebent key length, 0.146 inches minimum and 0.166 inches maximum external prebent key width
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Hole Diameter
- 0.801 inches minimum and 0.816 inches maximum
- Outside Diameter
- 1.110 inches minimum and 1.140 inches maximum
- Internal Prebent Key Length
- 0.062 inches minimum and 0.093 inches maximum
- External Prebent Key Width
- 0.146 inches minimum and 0.166 inches maximum
- Internal Prebent Key Width
- 0.156 inches minimum and 0.176 inches maximum
- Overall Distance Including Keys
- 1.531 inches maximum
- External Key Quantity
- 11
- Material Thickness
- 0.038 inches minimum and 0.046 inches maximum
- Hardness Rating
- 50.0 rockwell b minimum and 81.0 rockwell b maximum
- Material
- steel comp 1010 or steel comp 1012 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1035 or steel comp 1023 or steel comp 1524 or steel comp 1025 overall
- Material Document And Classification
- 66 fed std all material responses overall
- Surface Treatment
- cadmium or zinc overall
- Surface Treatment Document And Classification
- qq-p-416 ty2 cl3 fed spec 1st treatment response or qq-z-325 ty2 cl3 fed spec 2nd treatment response overall
- Style Designator
- key
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 1 - Full descriptive item identification
- A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A022B0
- U - Precious metal content is unknown
- 0001869
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 7318220000
Freight Information
Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.
- Major Organizational Entity
- National Motor Freight Classification Item Number
- National Motor Freight Classification Sub-Item Number
- Uniform Freight Classification Item Number
- National Motor Freight Class Rating
- Water Commodity
- Type of Cargo
- Special Hand
- Air Dimension
- Air Commodity
- National Motor Freight Description
- XX
- 194160
- X
- 55210
- U - 50.0
- 573 - Bolts or nuts (iron or steel),(less than 35 feet)
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- VZ -
- washer or gaskets, iron or steel,
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 18640PC8
What is the FSCG of the NSN 5310-00-226-5978?
The FSCG of the NSN 5310-00-226-5978 is 5310
Does the NSN 5310-00-226-5978 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-00-226-5978 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-00-226-5978 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-226-5978 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-00-226-5978 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961
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