Recessed Washer

NSN: 5310-00-023-4771 | Model: NAS1288-4W

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

NSN Properties and Flags

NATO Stock Number

5310-00-023-4771

DEMIL

Hole Diameter

Between 0.300 inches and 0.310 inches

Outside Diameter

0.457 inches

Recess Diameter

0.420 inches

Material Thickness

Between 0.065 inches and 0.095 inches

Hardness Rating

Between 41.0 rockwell c and 48.0 rockwell c

Recess Angle

90.0 degrees

Material

Steel comp 601

Material Specification

Ams 6304 assn standard single material response

Surface Treatment

Nickel and zinc

Surface Treatment Specification

Ams 2417 assn standard 1st treatment response and ams 2417 assn standard 2nd treatment response

Style Designator

Recessed

Recent Solicitations

Solicitation	Return by Date	Buyer Code	Quantity
SPE5E820T8024	2020-04-10	PHPHA	800 EA

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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ISO 9001:2015 + AS9120B
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NSN 5310-00-023-4771 Datasheet

Supply Class (FSC):

Nuts And Washers

Cross Reference:

NAS1288-4W
4084-04
4084-04
10116498

Cage Codes:

National Aerospace Standards (CAGE 80205)
Fitz Aerospace, Llc (CAGE 019L2)
Harvard Industries Inc (CAGE 72962)
Nimikkeistokeskus Ncb Finland (CAGE A486G)

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

U - Precious metal content is unknown

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
100
Unit of Measure
Ea
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 $27.62 to $46.04..
Does NSN 5310-00-023-4771 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, Department Of The Navy, Finland, Spain, Australia, Canada, New Zealand, Germany, Italy, Turkey, and Nato Maintenance and Supply Agency
What is the NIIN of NSN 5310-00-023-4771?
000234771 or 00-023-4771
Does NSN 5310-00-023-4771 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5310-00-023-4771?
Solicitation SPE5E820T8024 for qty 800 on 04/03/2020
When was this national stock number assigned to the federal catalog?
Apr 19, 1968