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KFN526DL-4 Extended Washer Self-Locking Nut

5310-01-352-8801

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Official Item Classification

Name
Extended Washer Self-Locking Nut
Part Number
KFN526DL-4
(NSN) National Stock Number
5310-01-352-8801
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
29730
(FIIG) Federal Item Identification Guide
A021A0
Date
02/01/1992 (34 years ago)

0.465 inches minimum and 0.475 inches maximum washer outside diameter, 0.340 inches nominal overall height, 3b thread class, prevailing torque all metal design locking feature, right-hand thread direction

Specs & Compatibility

Thread Class

3b

Thread Direction

right-hand

Locking Feature

prevailing torque all metal design

Washer Outside Diameter

0.465 inches minimum and 0.475 inches maximum

Overall Height

0.340 inches nominal

Nut Style

hexagon

Washer Thickness

0.110 inches minimum and 0.120 inches maximum

Width Across Flats

0.305 inches minimum and 0.313 inches maximum

Thread Series

unjf

Thread Quantity Per Inch

28

Nominal Thread Size

0.250 inches

Material

iron alloy 660 nut

Material

iron alloy 660 washer

Material Document And Classification

ams 5731 assn std single material response or ams 5734 assn std single material response or ams 5736 assn std single material response nut

Material Document And Classification

ams5731 assn std single material response or ams 5737 assn std single material response washer

Surface Treatment

disulfide molybdenum overall

Surface Treatment Document And Classification

mil-l-8937 mil spec single treatment response overall

Replacement For

Part Number Description
5310-01-320-8095 No Name Available 10/01/2009

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

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

Pseudo Item Name Code

0029730

Related Hardware Products

Part Number Description
03A137-4L Extended Washer Self-Locking Nut
BH137M4 Extended Washer Self-Locking Nut
KFN526DL-4 Extended Washer Self-Locking Nut
KFN526L-4 Extended Washer Self-Locking Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-01-352-8801?
The FSCG of the NSN 5310-01-352-8801 is 5310
Does the NSN 5310-01-352-8801 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-352-8801 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-01-352-8801 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-352-8801 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-01-352-8801 was assigned to the Federal Catalog?
It was assigned 34 years ago, on Sat, Feb 1, 1992