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MS21297-14056 Close Tolerance Bolt

5306-01-059-1948

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Official Item Classification

Name
Close Tolerance Bolt
Part Number
MS21297-14056
(NSN) National Stock Number
5306-01-059-1948
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5306 Bolts
(INC) Item Name Code
27851
(FIIG) Federal Item Identification Guide
A003B0
Date
04/08/1978 (48 years ago)

1.338 inches minimum and 1.388 inches maximum thread length, right-hand thread direction, 4.848 inches minimum and 4.878 inches maximum fastener length, spline extended washer head style, 3a thread class

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

1.338 inches minimum and 1.388 inches maximum

Fastener Length

4.848 inches minimum and 4.878 inches maximum

Head Style

spline extended washer

Head Height

0.690 inches minimum and 0.710 inches maximum

Extended Washer Diameter

1.615 inches minimum and 1.625 inches maximum

Extended Washer Thickness

0.116 inches minimum and 0.136 inches maximum

Grip Diameter

0.8730 inches minimum and 0.8740 inches maximum

Nominal Thread Diameter

0.875 inches

Grip Length

3.490 inches minimum and 3.510 inches maximum

Thread Quantity Per Inch

14

Surface Finish

32.0 microinches bearing surface of head

Surface Finish

32.0 microinches grip

Material

steel comp h11 overall

Surface Treatment

cadmium overall

Thread Series Designator

unjf

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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

0027851

Related Hardware Products

Part Number Description
MS21297-14056 Close Tolerance Bolt

Frequently Asked Questions

What is the FSCG of the NSN 5306-01-059-1948?
The FSCG of the NSN 5306-01-059-1948 is 5306
Does the NSN 5306-01-059-1948 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-059-1948 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 5306-01-059-1948 contain precious materials?
Precious metal content is unknown
Does NSN 5306-01-059-1948 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 5306-01-059-1948 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Sat, Apr 8, 1978