NSN 5310-01-197-6421 NIIN — Flat Washer

National Stock number : 5310-01-197-6421

Flat Washer


Available Quantity 6,342
Available Conditions NS NE AR
Classification Nuts and Washers - FSC 5310
Schedule B 7318220000
Stock Check Date 06/17/2026
Part-Number.info Quality System
  •   ISO 9001:2015 + AS9120B Certifed
  •   Audited supply chain
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   HAZMAT Certified
  •   ITAR and DDTC Registered
AS9120 Certified Supplier

Product Properties


Description

Flat Washer

Cross-sectional Shape Style

rectangular

Hole Diameter

0.656in. and 0.667in. ⁓43/64"

Peripheral Shape Style

round

Center Hole Shape Style

1 round

Thickness

0.073in. and 0.087in. ⁓3/32"

Overall Diameter

1.050in. and 1.070in. ⁓1-5/64"

Hardness Rating

36.0 rockwell c and 40.0 rockwell c

Material

steel comp 8630 or steel comp 4130 or steel comp 4135

Material Document And Classification

MIL-S-1872 mil spec 1st material response or MIL-S-18729 mil spec 2nd material response or MIL-S-18733 mil spec 3rd material response

Surface Treatment

nickel and cadmium

Surface Treatment Document And Classification

ams 2416 fed std single treatment response

Pricing and Availability Quote

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National Stock Number
5310-01-197-6421
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