FFB571TYPEC2 Square Neck Bolt

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5306-00-297-7948

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Official Item Classification

Name: Square Neck Bolt
Part Number: FFB571TYPEC2
(NSN) National Stock Number: 5306-00-297-7948
(FSG) Federal Supply Group: 53 Hardware and Abrasives
(FSC) Federal Supply Classification: 5306 Bolts
(INC) Item Name Code: 15939
(FIIG) Federal Item Identification Guide: A003B0
Date: 01/01/1963 (63 years ago)

2a thread class, button head style, 0.750 inches minimum thread length, right-hand thread direction, 1.750 inches nominal fastener length

Specs & Compatibility

Thread Class

Thread Direction

right-hand

Thread Length

0.750 inches minimum

Fastener Length

1.750 inches nominal

Head Style

button

Head Diameter

0.688 inches nominal

Head Height

0.156 inches nominal

Neck Length

0.250 inches nominal

Nominal Thread Diameter

0.312 inches

Features Provided

square nut

Thread Quantity Per Inch

Minimum Tensile Strength

48000 pounds per square inch

Neck Width

0.313 inches nominal

Material

steel overall

Material Document And Classification

ff-b-571 fed spec single material response overall

Thread Series Designator

unc

Nondefinitive Spec/Std Data

c2 type and c class

Regulatory Compliance

Precious Metals Indicator

Precious metal content is unknown

Criticality Code

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

Hazardous Metals Indicator

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

0015939

Related Hardware Products

Part Number	Description
FFB571TYPEC2	Square Neck Bolt

Frequently Asked Questions

What is the FSCG of the NSN 5306-00-297-7948?

The FSCG of the NSN 5306-00-297-7948 is 5306

Does the NSN 5306-00-297-7948 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-297-7948 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 5306-00-297-7948 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-297-7948 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 5306-00-297-7948 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963