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T009-4-8A Close Tolerance Screw

5305-01-330-7090

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Official Item Classification

Name
Close Tolerance Screw
Part Number
T009-4-8A
(NSN) National Stock Number
5305-01-330-7090
(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
12/07/1990 (35 years ago)

flat countersunk head style, right-hand thread direction, 0.910 inches minimum and 0.940 inches maximum fastener length, 3a thread class, 0.425 inches nominal thread length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.425 inches nominal

Fastener Length

0.910 inches minimum and 0.940 inches maximum

Head Style

flat countersunk

Head Diameter

0.449 inches minimum and 0.507 inches maximum

Grip Diameter

0.2485 inches minimum and 0.2495 inches maximum

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.250 inches

Grip Length

0.490 inches minimum and 0.510 inches maximum

Thread Quantity Per Inch

28

Minimum Tensile Strength

160000 pounds per square inch

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Surface Finish

32.0 microinches overall

Material

titanium alloy uns r56400 overall

Material Document And Classification

ams4928 assn std single material response or ams4967 assn std single material response overall

Surface Treatment

aluminum overall

Surface Treatment Document And Classification

nas4006 assn std 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

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Frequently Asked Questions

What is the FSCG of the NSN 5305-01-330-7090?
The FSCG of the NSN 5305-01-330-7090 is 5305
Does the NSN 5305-01-330-7090 have a Schedule B code assigned?
Yes, the Schedule B code is 8109900000
Does NSN 5305-01-330-7090 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 5305-01-330-7090 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-330-7090 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 5305-01-330-7090 was assigned to the Federal Catalog?
It was assigned 35 years ago, on Fri, Dec 7, 1990