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BACS12BP08B7

View detailed technical data, stock status, and sourcing information for: BACS12BP08B7

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BACS12BP08B7
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-521-5626
Item Name Code
16282
Assigment Date
06/24/2004 (22 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

0.370 inches nominal fastener length, flat countersunk head style, 3a thread class, right-hand thread direction, 0.245 inches nominal 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
0.245 inches nominal
Fastener Length
0.370 inches nominal
Head Style
flat countersunk
Head Diameter
0.319 inches minimum and 0.332 inches maximum
Locking Feature
patch threads
Internal Drive Style
high-torque
Nominal Thread Diameter
0.164 inches
Thread Quantity Per Inch
32
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Material
steel overall
Material Document And Classification
nas498 assn std single material response overall
Surface Treatment
cadmium overall
Surface Treatment Document And Classification
qq-p-416 fed spec single treatment response overall
Thread Series Designator
unjc

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
BACS12BP08B7 Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-521-5626?
The FSCG of the NSN 5305-01-521-5626 is 5305
Does the NSN 5305-01-521-5626 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-521-5626 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 5305-01-521-5626 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-521-5626 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 5305-01-521-5626 was assigned to the Federal Catalog?
It was assigned 22 years ago, on Thu, Jun 24, 2004

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