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5305-01-331-5809

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-331-5809
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
29294
(FIIG) Federal Item Identification Guide
A003B0
Date
12/21/1990 (35 years ago)

0.338 inches nominal thread length, 3a thread class, flat countersunk head style, 0.947 inches minimum and 0.994 inches maximum fastener length, right-hand thread direction

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.338 inches nominal

Fastener Length

0.947 inches minimum and 0.994 inches maximum

Head Style

flat countersunk

Head Diameter

0.339 inches minimum and 0.381 inches maximum

Grip Diameter

0.1890 inches minimum and 0.1895 inches maximum

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.190 inches

Grip Length

0.615 inches minimum and 0.635 inches maximum

Thread Quantity Per Inch

32

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Part Name Assigned By Controlling Agency

navy special project

Material

nickel alloy 718 overall

Material Document And Classification

ams 5662 assn std single material response overall

Surface Treatment

passivate overall

Surface Treatment Document And Classification

qq-p-35 fed spec single treatment response overall

Thread Series Designator

unjf

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

0029294

Related Hardware Products

Part Number Description
124379-3-10 Close Tolerance Screw
GB510FG3-10 Close Tolerance Screw
PBF1475-3-10 Close Tolerance Screw
VCL0009-3-10 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-331-5809?
The FSCG of the NSN 5305-01-331-5809 is 5305
Does the NSN 5305-01-331-5809 have a Schedule B code assigned?
Yes, the Schedule B code is 7508900000
Does NSN 5305-01-331-5809 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 5305-01-331-5809 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-331-5809 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 5305-01-331-5809 was assigned to the Federal Catalog?
It was assigned 35 years ago, on Fri, Dec 21, 1990