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WC8137-3-9A Close Tolerance Screw

5305-01-231-7413

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Official Item Classification

Name
Close Tolerance Screw
Part Number
WC8137-3-9A
(NSN) National Stock Number
5305-01-231-7413
(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
05/03/1986 (40 years ago)

3a thread class, 0.380 inches minimum and 0.447 inches maximum thread length, 0.952 inches minimum and 0.999 inches maximum fastener length, right-hand thread direction, flat countersunk undercut head style

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.380 inches minimum and 0.447 inches maximum

Fastener Length

0.952 inches minimum and 0.999 inches maximum

Head Style

flat countersunk undercut

Head Diameter

0.376 inches minimum and 0.381 inches maximum

Head Height

0.044 inches minimum and 0.046 inches maximum

Grip Diameter

0.1890 inches minimum and 0.1895 inches maximum

Internal Drive Style

high-torque

Nominal Thread Diameter

0.190 inches

Grip Length

0.552 inches minimum and 0.572 inches maximum

Thread Quantity Per Inch

32

Countersink Angle

100.0 degrees nominal

Surface Finish

32.0 microinches grip

Surface Finish

32.0 microinches threads

Special Features

cetyl alcohol lubricant and furnish with one o ring

Material

titanium alloy uns r56400 overall

Material Document And Classification

ams4967 assn std single material 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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Part Number Description
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ST3M430V3-9AS Close Tolerance Screw
WC8137-3-9A Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-231-7413?
The FSCG of the NSN 5305-01-231-7413 is 5305
Does the NSN 5305-01-231-7413 have a Schedule B code assigned?
Yes, the Schedule B code is 8109900000
Does NSN 5305-01-231-7413 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 5305-01-231-7413 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-231-7413 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 5305-01-231-7413 was assigned to the Federal Catalog?
It was assigned 40 years ago, on Sat, May 3, 1986