Secure Ordering: +1 (757) 528-8028

Worldwide distributor of NSN parts and consumables located in the USA.

Spring Tension Washer

NSN: 5310-00-006-8231 | Model: 83399

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.


Steel comp 6150, heat treatment: quenched and tempered

NSN Properties and Flags
NATO Stock Number
Hole Diameter
3.985 inches to 4 inches
Outside Diameter
5.345 inches to 5.36 inches
Overall Height
0.111 inches
Material Thickness
0.013 inches to 0.014 inches
Hardness Rating
44 Rockwell c to 48 Rockwell c
Heat Treatment
Quenched and tempered
Steel comp 6150
Material Document and Classification
Sae assn std single material response

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Email Address:
Phone Number:
Your name:
Privacy    Terms

Certified Quality Assurance  Quality check icon

  •   ISO 9001:2015 + AS9120B
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   On Time Delivery
  •   HAZMAT Certified
  •   Worldwide Shipping

NSN 5310-00-006-8231 Datasheet

Supply Class (FSC):
Nuts And Washers
Cross Reference:
  • 83399
Cage Codes:
  • Black and Decker Us Inc (CAGE 07429)
Schedule B & Trade:
  • Schedule B: 7318210000 (NAICS 332722)

    Spring washers and other lock washers, iron or steel

  • SITC: 69422

    Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, not threaded, of iron or steel

  • End Use: 12300

    Finished metal shapes


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


U - Precious metal content is unknown


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

Freight Information:
  • NMFC:

    194160 - Washer or gaskets, iron or steel,

  • WCC:

    713 - Metal hardware

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LTL:

    U - 50.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $118.91 to $198.18..
Does NSN 5310-00-006-8231 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 5310-00-006-8231?
000068231 or 00-006-8231
Does NSN 5310-00-006-8231 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5310-00-006-8231?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jun 28, 1972