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BACB30AB-P6-17A Close Tolerance Screw

5305-01-059-0218

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Official Item Classification

Name
Close Tolerance Screw
Part Number
BACB30AB-P6-17A
(NSN) National Stock Number
5305-01-059-0218
(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
04/06/1978 (48 years ago)

right-hand thread direction, 0.442 inches minimum and 0.494 inches maximum thread length, 3a thread class, flat countersunk head style, 1.390 inches minimum and 1.422 inches maximum fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.442 inches minimum and 0.494 inches maximum

Fastener Length

1.390 inches minimum and 1.422 inches maximum

Head Style

flat countersunk

Head Diameter

0.693 inches minimum and 0.768 inches maximum

Grip Diameter

0.3733 inches minimum and 0.3742 inches maximum

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.375 inches

Grip Length

0.928 inches minimum and 0.948 inches maximum

Thread Quantity Per Inch

24

Minimum Tensile Strength

16000 pounds per square inch

Hardness Rating

36.0 rockwell c minimum and 40.0 rockwell c maximum overall

Countersink Angle

100.0 degrees nominal

Surface Finish

63.0 microinches grip

Material

steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 or steel comp 4037 overall

Surface Treatment

cadmium and chromate overall

Surface Treatment Document And Classification

qq-p-416,type 2,class 3 fed spec single treatment response overall

Thread Series Designator

unf

Specification/Standard Data

81205-bacb30ab manufacturers standard

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.

Source of Supply Code

S9I

Pseudo Item Name Code

0029294

Related Hardware Products

Part Number Description
BACB30AB-P6-17A Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-059-0218?
The FSCG of the NSN 5305-01-059-0218 is 5305
Does the NSN 5305-01-059-0218 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-059-0218 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 5305-01-059-0218 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-059-0218 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 5305-01-059-0218 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Thu, Apr 6, 1978