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Flat Washer

NSN: 5310-00-205-8491 | Model: MS20002-7

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 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.

NSN Properties and Flags
NATO Stock Number
5310-00-205-8491
DEMIL
NO
Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.441 inches and 0.451 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.052 inches and 0.072 inches
Overall Diameter
Between 0.771 inches and 0.791 inches
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
Between 25.0 rockwell c and 32.0 rockwell c
Material
Steel comp 1330 or steel comp 4130
Material Specification
66 federal standard all material responses
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE4A719T7700 2019-01-22 GPD45 253 HD
SPE4A719T2731 2018-11-14 GPD45 885 HD
SPE4A718T821L 2018-10-05 GPD45 258 HD
SPE5E816T1157 2015-11-09 PHPHA 507 HD

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.

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NSN 5310-00-205-8491 Datasheet

Supply Class (FSC):
Nuts And Washers
Cross Reference:
  • MS20002-7
  • 938.75.11.124
  • Z00.N5741532472
  • 177922-7
  • NAS143-7
  • MS20002-7
  • GW10B7B
Cage Codes:
  • National Aerospace Standards (CAGE 80205)
  • Pilatus Aircraft Ltd (CAGE S4080)
  • Socata (CAGE F0086)
  • Wright Controls, Inc. Curtiss (CAGE 71791)
  • Military Standards (CAGE 96906)
  • Northrop Grumman Systems Corporation (CAGE 26512)
Replacements:
  • 5310-00-205-8491 replaces 5310-00-149-9129
  • 5310-00-205-8491 replaces 5310-00-177-7605
  • 5310-00-205-8491 replaces 5310-00-199-2175
  • 5310-00-205-8491 replaces 5310-00-205-9243
  • 5310-00-205-8491 replaces 5310-00-613-8913
  • 5310-00-205-8491 replaces 5310-00-245-3599
Schedule B & Trade:
  • Schedule B: 7318220000 (NAICS 332722)

    Washers other than 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

Identification:
HMIC

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

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

- 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
    Sms
  • AAC
    D
  • Quantity per pack
    1
  • Unit of Measure
    Hd
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    T2200x-
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $20.53 to $34.22..
Does NSN 5310-00-205-8491 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 Army, Department Of The Air Force, U.s. Marine Corps, Department Of The Navy, Federal Aviation Administration, U.s. Coast Guard, Lithuania, Slovenia, Poland, Romania, Slovakia, Brazil, Spain, Columbia, Singapore, Kuwait, Malaysia, Australia, Belgium, Canada, New Zealand, France, Germany, Republic Of Korea, United Kingdom, Philippines, Netherlands, Portugal, Italy, Denmark, Norway, Greece, Turkey, and Nato Maintenance and Supply Agency
What is the NIIN of NSN 5310-00-205-8491?
002058491 or 00-205-8491
Does NSN 5310-00-205-8491 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5310-00-205-8491?
Solicitation SPE4A719T7700 for qty 253 on 01/14/2019
When was this national stock number assigned to the federal catalog?
Jan 01, 1963