BACB30LP4-8

View detailed technical data, stock status, and sourcing information for: BACB30LP4-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-057-4279

Item Name Code

29294

Assigment Date

03/13/1978 (48 years ago)

flat countersunk head style, right-hand thread direction, 0.910 inches minimum and 0.940 inches maximum fastener length, 3a thread class, 0.400 inches minimum and 0.450 inches maximum thread length

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: 0.400 inches minimum and 0.450 inches maximum
Fastener Length: 0.910 inches minimum and 0.940 inches maximum
Head Style: flat countersunk
Head Diameter: 0.455 inches minimum and 0.510 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.490 inches minimum and 0.510 inches maximum
Thread Quantity Per Inch: 28
Countersink Angle: 100.0 degrees nominal
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches threads
Material: iron alloy 660 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

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
BACB30LP4-8	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-057-4279?

The FSCG of the NSN 5305-01-057-4279 is 5305

Does the NSN 5305-01-057-4279 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-057-4279 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 5305-01-057-4279 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-057-4279 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 5305-01-057-4279 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Mon, Mar 13, 1978