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B478272 Machine Bolt

5306-01-164-3991

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Official Item Classification

Name
Machine Bolt
Part Number
B478272
(NSN) National Stock Number
5306-01-164-3991
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5306 Bolts
(INC) Item Name Code
01847
(FIIG) Federal Item Identification Guide
A003B0
Date
10/16/1983 (42 years ago)

right-hand thread direction, 3a thread class, 1.097 inches nominal fastener length, 0.723 inches nominal thread length, double hexagon w/hole head style

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.723 inches nominal

Fastener Length

1.097 inches nominal

Head Style

double hexagon w/hole

Head Height

0.280 inches minimum and 0.290 inches maximum

Width Between Flats

0.312 inches nominal

Extended Washer Diameter

0.433 inches minimum and 0.438 inches maximum

Extended Washer Thickness

0.140 inches nominal

Nominal Thread Diameter

0.250 inches

Thread Quantity Per Inch

28

Surface Finish

32.0 microinches threads

Material

steel overall

Precious Material

silver

Surface Treatment

silver overall

Thread Series Designator

unjf

Regulatory Compliance

Precious Metals Indicator
S

Item contains silver.

Criticality Code
F

The item is an aviation critical safety item/flight safety critical aircraft part (acsi/fscap).

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

0001847

Related Hardware Products

Part Number Description
B478272 Machine Bolt

Frequently Asked Questions

What is the FSCG of the NSN 5306-01-164-3991?
The FSCG of the NSN 5306-01-164-3991 is 5306
Does the NSN 5306-01-164-3991 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-164-3991 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 5306-01-164-3991 contain precious materials?
Item contains silver.
Does NSN 5306-01-164-3991 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 5306-01-164-3991 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Sun, Oct 16, 1983