NS202905-4

View detailed technical data, stock status, and sourcing information for: NS202905-4

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NS202905-4
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-01-235-6482
Item Name Code
05280
Assigment Date
07/04/1986 (40 years ago)

A nut, flat on top and bottom, having four flat sides of which two parallel sides are shorter than the other two. For items having a thickness (or height) exceeding two times the width, use post, electrical-mechanical equipment. (when height or thickness and/or width is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

0.236 inches nominal distance from centerline to flat, 3b thread class, right-hand thread direction, 0.254 inches minimum base counterbore diameter, prevailing torque all metal design locking feature

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3b
Thread Direction
right-hand
Distance From Centerline To Flat
0.236 inches nominal
Locking Feature
prevailing torque all metal design
Counterbore Diameter
0.254 inches minimum base
Lubrication
dry film lubricant
Mounting Hole Diameter
0.098 inches minimum and 0.103 inches maximum
Nut Style
plate
Nut Length
0.617 inches maximum
Nut Height
0.281 inches maximum
Plate Thickness
0.032 inches maximum
Plate Width
0.502 inches maximum
Nut Counterbore Depth
0.062 inches maximum base
Nut Mounting Provision
straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
0.281 inches nominal
Center To Center Distance Between Mounting Holes Along Width
0.217 inches minimum and 0.221 inches maximum
Temp Rating
450.0 fahrenheit maximum
Thread Series
unjf
Features Provided
floating nut
Thread Quantity Per Inch
28
Nominal Thread Size
0.250 inches
Material
steel comp 1050 or steel comp 301 or steel comp 302 or steel comp 304 or steel comp 316 shell
Material
steel comp 4130 or steel comp 4140 or steel comp 8740 nut
Material Document And Classification
ams 6350 assn std 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response nut
Material Document And Classification
mil-s-5059 mil spec all material responses shell
Surface Treatment
cadmium and chromate or passivate shell
Surface Treatment
cadmium nut
Surface Treatment Document And Classification
qq-p-416,ty 1,cl 2 fed spec single treatment response nut
Surface Treatment Document And Classification
qq-p-416,ty 2,cl 2 fed spec 1st treatment response or qq-p-35 fed spec 2nd treatment response shell

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
186010-4 Plate Self-Locking Nut
5310PL0779066 Plate Self-Locking Nut
5310PL1631722 Plate Self-Locking Nut
C9745-4 Plate Self-Locking Nut
FBL10018-4 Plate Self-Locking Nut
NS202905-4 Plate Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-01-235-6482?
The FSCG of the NSN 5310-01-235-6482 is 5310
Does the NSN 5310-01-235-6482 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-235-6482 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 5310-01-235-6482 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-235-6482 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 5310-01-235-6482 was assigned to the Federal Catalog?
It was assigned 40 years ago, on Fri, Jul 4, 1986

Professional Distribution

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Pricing

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ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Surplus 407
New Material 536
Serviceable 1
Total 944
Availability of this item was last updated on: 02/04/2026 05:02 PM EST. Stock levels and pricing are subject to change.

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