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5305-01-050-9003

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-050-9003
(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
11/16/1977 (48 years ago)

3a thread class, 1.298 inches minimum and 1.328 inches maximum fastener length, 0.413 inches minimum and 0.463 inches maximum thread length, right-hand thread direction, flat countersunk head style

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.413 inches minimum and 0.463 inches maximum

Fastener Length

1.298 inches minimum and 1.328 inches maximum

Head Style

flat countersunk

Head Diameter

0.573 inches minimum and 0.635 inches maximum

Grip Diameter

0.3110 inches minimum and 0.3120 inches maximum

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.312 inches

Grip Length

0.865 inches minimum and 0.885 inches maximum

Thread Quantity Per Inch

24

Hardness Rating

46.0 rockwell c minimum and 49.0 rockwell c maximum overall

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Material

steel overall

Material Document And Classification

ams 6487 assn std single material response overall

Surface Treatment

cadmium overall

Surface Treatment Document And Classification

nas 672 assn std single treatment response overall

Thread Series Designator

unf

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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 5305-01-050-9003?
The FSCG of the NSN 5305-01-050-9003 is 5305
Does the NSN 5305-01-050-9003 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-050-9003 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 5305-01-050-9003 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-050-9003 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 5305-01-050-9003 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Wed, Nov 16, 1977