BACB30MS5R16
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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.
3a thread class, right-hand thread direction, 0.469 inches nominal thread length, flat countersunk head style, 1.454 inches minimum and 1.474 inches maximum fastener 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
- 0.469 inches nominal
- Fastener Length
- 1.454 inches minimum and 1.474 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.586 inches minimum and 0.637 inches maximum
- Grip Diameter
- 0.3427 inches minimum and 0.3432 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.990 inches minimum and 1.010 inches maximum
- Features Provided
- cetyl alcohol lubricant
- Thread Quantity Per Inch
- 24
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 63.0 microinches bearing surface of head
- Part Name Assigned By Controlling Agency
- navy special project
- Special Features
- red dye or paint on thread end before lubrication
- Material
- titanium alloy uns r56400 overall
- Surface Treatment
- phosphate overall
- Surface Treatment Document And Classification
- bac 5861,cage81205 mfr ref 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 |
|---|---|
| BACB30MS5R16 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-338-3351?
Does the NSN 5305-01-338-3351 have a Schedule B code assigned?
Does NSN 5305-01-338-3351 require demilitarization?
Does NSN 5305-01-338-3351 contain precious materials?
Does NSN 5305-01-338-3351 contain hazardous materials?
When the NSN 5305-01-338-3351 was assigned to the Federal Catalog?
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