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5305-01-191-0408

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-191-0408
(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
10/05/1984 (42 years ago)

0.386 inches minimum and 0.453 inches maximum thread length, flat countersunk head style, 3a thread class, right-hand thread direction, 1.521 inches minimum and 1.568 inches maximum fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.386 inches minimum and 0.453 inches maximum

Fastener Length

1.521 inches minimum and 1.568 inches maximum

Head Style

flat countersunk

Head Diameter

0.464 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

1.115 inches minimum and 1.135 inches maximum

Thread Quantity Per Inch

28

Minimum Tensile Strength

220000 pounds per square inch

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Surface Finish

32.0 microinches grip

Surface Finish

32.0 microinches threads

Special Features

drive ribbed

Material

steel comp h11 overall

Material Document And Classification

ams6487 assn std single material response overall

Surface Treatment

cadmium or cadmium and chromate overall

Surface Treatment Document And Classification

nas672 assn std 1st treatment response or mil-c-8837,ty2,cl2 mil spec 2nd treatment response overall

Thread Series Designator

unjf

Replacement For

Part Number Description
5305-01-056-3515 No Name Available 11/01/1987

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
106706T-4-18 Close Tolerance Screw
GB510CE4-18 Close Tolerance Screw
HR204-4-18 Close Tolerance Screw
PBF1202-4-18 Close Tolerance Screw
SC1779-4-18 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-191-0408?
The FSCG of the NSN 5305-01-191-0408 is 5305
Does the NSN 5305-01-191-0408 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-191-0408 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 5305-01-191-0408 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-191-0408 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 5305-01-191-0408 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Fri, Oct 5, 1984