Home » FSC Catalog » Nuts And Washers » 5310-00-018-0288

Lock Washer

SKU: 5310000180288 | Model: MILW6986TYPEA
NSN 5310-00-018-0288 NSN 5310-00-018-0288

0.320" hole diameter, 0.590" outside diameter, 0.040" material thickness, steel comp 1060 or steel comp 1065 or steel comp 1070 or steel comp 1075 or steel comp 1080 material

Specifications from the Manufacturer

Hole Diameter:
0.320 inches minimum and 0.332 inches maximum
Outside Diameter:
0.590 inches minimum and 0.607 inches maximum
Material Thickness:
0.040 inches minimum and 0.050 inches maximum
Steel comp 1060 overall or steel comp 1065 overall or steel comp 1070 overall or steel comp 1075 overall or steel comp 1080 overall
Material Document And Classification:
-qq-s-633 canc fed spec 1st material response overall or -qq-s-633 canc fed spec 2nd material response overall or -qq-s-633 canc fed spec 3rd material response overall or -qq-s-633 canc fed spec 4th material response overall or -qq-s-633 canc fed spec 5th material response overall
Style Designator:
Flat internal teeth
Nondefinitive Spec/std Data:
A type

Pricing and Availability

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NSN 5310-00-018-0288 Datasheet

Supply Class:


Cross Reference:

  • 180288
  • 4242A
  • 31359J
  • 91601

Cage Codes:

  • Military Specifications (CAGE 81349)
  • General Motors Llc (CAGE 7X677)
  • D.w. Hercules, Llc (CAGE 1ML14)
  • Diamond Reo Truck Co (CAGE 56442)
  • Graham Paige Corp (CAGE 89109)

Replaced or Cancelled:

5310-00-018-0288 is not a replacement of any national stock number and has not been cancelled or replaced itself.


NIIN: 000180288
NSN: 5310000180288
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: Washer Or Gaskets, Iron Or Steel,
NMFC: 194160
UFC: 55210
LTL: 50.0
LCL: 50.0
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: Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
ASH: No special handling required.

Reference Drawing:

[drawing of 5310-00-018-0288]

Schedule B & Trade:

7318210000 (NAICS 332722)
Spring washers and other 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 5310-00-018-0288 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
No recorded entities for this stock number.
How is national stock number 5310-00-018-0288 defined?
A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces
What is the NIIN of NSN 5310-00-018-0288?
000180288 or 00-018-0288
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 5310000180288 ITAR controlled?
No. This item is not ITAR Controlled.
What is the most recent solicitation for NSN 5310000180288?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963