Aerospace Hardware Store

Aerospace

Hardware

188773 Flat Washer

5310-00-637-2242

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

Request for Quote

Send us a request for quote using the form below. Our team will promptly provide you with the latest pricing and availability details.

AS9120 ISO9001 Aviation Suppliers Association Global Shipping

Featured Parts

002-186
5330-01-350-4585
Preformed Packing
002-188
5331-01-209-9417
O-Ring
002-19-04-0001-0002
5330-01-008-9369
Gasket
002-19-06-0001- 0000
5330-01-035-4153
Seal
002-19-06-0001-0002
5330-00-903-8348
Valve Seat Seal
002-19-10-0001-0002
5330-00-178-0376
Gasket
002-19-12-0001- 0002
5330-00-956-8465
Gasket
002-19-12-0001-0
5330-00-205-3960
Seal

Need Assistance?

Our catalog is extensive, but we understand that sometimes specific needs might not be immediately available. If you could not find the exact products you were searching for, we are here to help!

Contact us directly, and our team will assist you in finding the perfect solution for your requirements.

Contact Us

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Genuine Manufacturers Parts
  • 100% Product Inspection
  • 7 Year Sales Record Retention
  • Fast On-Time Delivery
  • HAZMAT Certified
  • Global Shipping

Official Item Classification

Name
Flat Washer
Part Number
188773
(NSN) National Stock Number
5310-00-637-2242
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
13393
(FIIG) Federal Item Identification Guide
A022B0
Date
01/01/1963 (63 years ago)

round peripheral shape style, 0.343 inches minimum and 0.345 inches maximum hole diameter, round center hole shape style, rectangular cross-sectional shape style, 0.025 inches minimum and 0.035 inches maximum thickness

Specs & Compatibility

Cross-Sectional Shape Style

rectangular

Hole Diameter

0.343 inches minimum and 0.345 inches maximum

Peripheral Shape Style

round

Center Hole Shape Style

round

Thickness

0.025 inches minimum and 0.035 inches maximum

Overall Diameter

0.552 inches minimum and 0.572 inches maximum

Hardness Rating

35.0 rockwell c minimum and 45.0 rockwell c maximum

Surface Finish

100.0 microinches all surfaces

Material

steel comp 410 or steel comp 302 overall

Material Document And Classification

ams 5504 assn std 1st material response and ams 5516 assn std 2nd material response overall

Surface Treatment

lead overall

Surface Treatment Document And Classification

esa091 fscm 06848 mfr ref single treatment response overall

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Source of Supply Code

S9I

Pseudo Item Name Code

0013393

Related Hardware Products

Part Number Description
188773 Flat Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-637-2242?
The FSCG of the NSN 5310-00-637-2242 is 5310
Does the NSN 5310-00-637-2242 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-00-637-2242 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 5310-00-637-2242 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-637-2242 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 5310-00-637-2242 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963