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BACB30NF6-29

View detailed technical data, stock status, and sourcing information for: BACB30NF6-29

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BACB30NF6-29
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-01-043-0554
Item Name Code
27851
Assigment Date
06/19/1977 (49 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

0.445 inches minimum and 0.495 inches maximum thread length, 2.267 inches minimum and 2.297 inches maximum fastener length, 3a thread class, right-hand thread direction, undercut hexagon head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.445 inches minimum and 0.495 inches maximum
Fastener Length
2.267 inches minimum and 2.297 inches maximum
Head Style
undercut hexagon
Head Height
0.188 inches minimum and 0.203 inches maximum
Width Between Flats
0.553 inches minimum and 0.564 inches maximum
Grip Diameter
0.3735 inches minimum and 0.3745 inches maximum
Nominal Thread Diameter
0.375 inches
Grip Length
1.802 inches minimum and 1.822 inches maximum
Thread Quantity Per Inch
24
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Material
steel comp e4340 or steel comp 4340 or steel comp 8740 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
unjf
Specification/Standard Data
81205-bacb30nf manufacturers standard

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
BACB30LJ6-29 Close Tolerance Bolt
BACB30NF6-29 Close Tolerance Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-01-043-0554?
The FSCG of the NSN 5306-01-043-0554 is 5306
Does the NSN 5306-01-043-0554 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-043-0554 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 5306-01-043-0554 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-01-043-0554 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 5306-01-043-0554 was assigned to the Federal Catalog?
It was assigned 49 years ago, on Sun, Jun 19, 1977

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