51B220-2
View detailed technical data, stock status, and sourcing information for: 51B220-2
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 51B220-2 to receive an up to date pricing and availability quote by email.
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.
right-hand thread direction, pan head style, 0.276 inches minimum thread length, 0.371 inches minimum and 0.478 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
- 0.276 inches minimum
- Fastener Length
- 0.371 inches minimum and 0.478 inches maximum
- Head Style
- pan
- Head Diameter
- 0.328 inches maximum
- Head Height
- 0.088 inches minimum and 0.102 inches maximum
- Grip Diameter
- 0.1625 inches minimum and 0.1635 inches maximum
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.164 inches
- Grip Length
- 0.110 inches minimum and 0.140 inches maximum
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Surface Finish
- 32.0 microinches grip
- Material
- steel overall
- Material Document And Classification
- mil-s-6049 mil spec single material response or mil-s-5626 mil spec single material response or mil-s-5000 mil spec single material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 2 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 |
|---|---|
| 51B220-2 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-763-4452?
Does the NSN 5305-00-763-4452 have a Schedule B code assigned?
Does NSN 5305-00-763-4452 require demilitarization?
Does NSN 5305-00-763-4452 contain precious materials?
Does NSN 5305-00-763-4452 contain hazardous materials?
When the NSN 5305-00-763-4452 was assigned to the Federal Catalog?
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- AS9120 Quality Standards
- 100% Quality Inspections
You May Also Like
Browse other in-demand NSN parts sourced by professionals in defense, aerospace, and manufacturing sectors. Each component meets strict standards for quality and performance.
Pricing
Submit your request below and our team will respond quickly with up-to-date pricing, delivery estimates, and stock information:
