BACB30LR4P-10

View detailed technical data, stock status, and sourcing information for: BACB30LR4P-10
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-059-1926

Item Name Code

16282

Assigment Date

04/08/1978 (48 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.438 inches minimum and 0.513 inches maximum thread length, flat countersunk head style, right-hand thread direction, 1.078 inches minimum and 1.123 inches maximum fastener length, 3a thread class

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: 0.438 inches minimum and 0.513 inches maximum
Fastener Length: 1.078 inches minimum and 1.123 inches maximum
Head Style: flat countersunk
Head Diameter: 0.454 inches minimum and 0.510 inches maximum
Locking Feature: pellet or strip threads
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Material: steel comp 8630 or steel comp 4037 overall
Surface Treatment: cadmium overall
Thread Series Designator: unf
Specification/Standard Data: 81205-bacb30ef 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
BACB30LR4P-10	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-059-1926?

The FSCG of the NSN 5305-01-059-1926 is 5305

Does the NSN 5305-01-059-1926 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-059-1926 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 5305-01-059-1926 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-059-1926 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 5305-01-059-1926 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sat, Apr 8, 1978