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Flat Washer

SKU: 5310004778999 | Model: 153-9
NSN 5310-00-477-8999 NSN 5310-00-477-8999

Specifications from the Manufacturer

Cross-sectional Shape Style:
Hole Diameter:
1.790 inches minimum and 1.810 inches maximum
Peripheral Shape Style:
Center Hole Shape Style:
1 round
Center Hole Shape Style:
0.022 inches minimum and 0.042 inches maximum
Overall Diameter:
2.625 inches minimum and 2.633 inches maximum
Steel comp 1010 overall
Material Document And Classification:
Aisi assn std single material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Document And Classification:
Ams 2400 assn std single treatment response overall

Pricing and Availability

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NSN 5310-00-477-8999 Datasheet

Supply Class:


Cross Reference:

  • 153-9
  • 755 964

Cage Codes:

  • Parker-hannifin Corporation (CAGE 33269)
  • Piper Aircraft Inc. (CAGE 77294)

Replaced or Cancelled:

5310-00-477-8999 is not a replacement of any national stock number and has not been cancelled or replaced itself.


NIIN: 004778999
NSN: 5310004778999
DEMIL Code Meaning: Non-usml/non-ccli - no demil or dod tsc required. department of commerce may impose licensing requirements to certain destinations.

Freight Codes:

NMF Desc: Washers/gaskets/pckg Dvcs Noi
NMFC: 194120
UFC: 95100
LTL: Rating variable
LCL: 60.0
WCC: Metal hardware
TCC: No special type of cargo code applicable
SHC: Other or no special handling required (sh)
ADC: Shipment is not a consolidation and does not exceed 84 inches in any dimension.
ACC: Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
ASH: No special handling required.

Reference Drawing:

[drawing of 5310-00-477-8999]

Schedule B & Trade:

7318220000 (NAICS 332722)
Washers other than lock washers, iron or steel

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

End Use:

Finished metal shapes

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 5310-00-477-8999 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Brazil, Spain, Malaysia, and Turkey
How is national stock number 5310-00-477-8999 defined?
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.
What is the NIIN of NSN 5310-00-477-8999?
004778999 or 00-477-8999
Does this item require Demilitarization?
Non-usml/non-ccli - no demil or dod tsc required. department of commerce may impose licensing requirements to certain destinations. (note 9).
Is NSN 5310004778999 ITAR controlled?
No. This item is not ITAR Controlled.
What is the most recent solicitation for NSN 5310004778999?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 18, 1970