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RM300A4 Plate Self-Locking Nut

5310-00-761-6830

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Official Item Classification

Name
Plate Self-Locking Nut
Part Number
RM300A4
(NSN) National Stock Number
5310-00-761-6830
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
05280
(FIIG) Federal Item Identification Guide
A021A0
Date
01/01/1960 (66 years ago)

0.254 inches minimum nut counterbore diameter, right-hand thread direction, dry film lubricant lubrication, prevailing torque all metal design locking feature, 3b thread class

Specs & Compatibility

Thread Class

3b

Thread Direction

right-hand

Locking Feature

prevailing torque all metal design

Counterbore Diameter

0.254 inches minimum nut

Lubrication

dry film lubricant

Mounting Hole Diameter

0.098 inches minimum and 0.103 inches maximum

Nut Style

plate

Nut Length

0.603 inches maximum

Nut Height

0.281 inches maximum

Plate Thickness

0.055 inches maximum

Nut Counterbore Depth

0.062 inches minimum nut

Nut Mounting Provision

straight holes

Mounting Hole Arrangement Style

2 holes

Distance From Aperture Center To Mounting Hole Center

0.276 inches minimum and 0.286 inches maximum

Temp Rating

450.0 fahrenheit nominal

Thread Series

unjf

Thread Quantity Per Inch

28

Hardness Rating

49.0 rockwell c maximum

Nominal Thread Size

0.250 inches

Material

steel overall

Surface Treatment

cadmium overall

Surface Treatment Document And Classification

qq-p-416 fed spec single treatment response overall

Replacement For

Part Number Description
5310-00-530-9119 No Name Available 07/01/1991

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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

0005280

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Frequently Asked Questions

What is the FSCG of the NSN 5310-00-761-6830?
The FSCG of the NSN 5310-00-761-6830 is 5310
Does the NSN 5310-00-761-6830 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-761-6830 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 5310-00-761-6830 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-761-6830 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 5310-00-761-6830 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960