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NCS2-4-8 Self-Locking Stud

5307-01-012-4993

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Official Item Classification

Name
Self-Locking Stud
Part Number
NCS2-4-8
(NSN) National Stock Number
5307-01-012-4993
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5307 Studs
(INC) Item Name Code
27783
(FIIG) Federal Item Identification Guide
A051A0
Date
11/12/1975 (50 years ago)

0.155 inches minimum and 0.159 inches maximum head diameter, 0.117 inches nominal head length, 2a nut thread thread class, 0.250 inches nominal nut thread thread length, right-hand nut thread thread direction

Specs & Compatibility

Thread Class

2a nut thread

Thread Direction

right-hand nut thread

Thread Length

0.250 inches nominal nut thread

Head Diameter

0.155 inches minimum and 0.159 inches maximum

Head Length

0.117 inches nominal

Locking Feature

self-clinching head

Overall Length

0.367 inches nominal

Distance Across Flats

0.180 inches nominal

Thread Quantity Per Inch

56 nut thread

Nominal Thread Size

0.086 inches nut thread

Material

steel comp 303

Surface Treatment

passivate overall

Surface Treatment Document And Classification

mil-f-14072,e300 mil spec single treatment response overall

Style Designator

self-locking

Thread Series Designator

unc nut thread

Replacement For

Part Number Description
5307-01-120-4442 No Name Available 06/01/2007

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

0027783

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NCS2-4-8 Self-Locking Stud

Frequently Asked Questions

What is the FSCG of the NSN 5307-01-012-4993?
The FSCG of the NSN 5307-01-012-4993 is 5307
Does NSN 5307-01-012-4993 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 5307-01-012-4993 contain precious materials?
Item does not contain precious metal.
Does NSN 5307-01-012-4993 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 5307-01-012-4993 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Wed, Nov 12, 1975