5305-01-256-6801
Find complete technical information, availability, and procurement data for: 5305-01-256-6801
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 NSN 5305-01-256-6801 to receive an up to date pricing and availability quote by email.
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
1.750 inches minimum thread length, 2.188 inches minimum and 2.250 inches maximum fastener length, flat countersunk head style, right-hand thread direction, 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
- 1.750 inches minimum
- Fastener Length
- 2.188 inches minimum and 2.250 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.447 inches minimum and 0.507 inches maximum
- 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
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Screw Material
- steel comp 4037 or steel comp 8630
- Screw Material Document And Classification
- ams6300 assn std 1st material response or mil-s-6050 mil spec 2nd material response
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 2 fed spec single treatment response
- Thread Series Designator
- unf
- Specification/Standard Data
- 80205-nas514 professional/industrial association 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 |
|---|---|
| NAS514P428-36 | Machine Screw |
| NAS514P428-36P | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-256-6801?
Does the NSN 5305-01-256-6801 have a Schedule B code assigned?
Does NSN 5305-01-256-6801 require demilitarization?
Does NSN 5305-01-256-6801 contain precious materials?
Does NSN 5305-01-256-6801 contain hazardous materials?
When the NSN 5305-01-256-6801 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:
