MB251-3-8
View detailed technical data, stock status, and sourcing information for: MB251-3-8
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 MB251-3-8 to receive an up to date pricing and availability quote by email.
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also bolt, externally relieved body and bolt, internal wrenching.
0.823 inches minimum and 0.853 inches maximum fastener length, 3a thread class, 0.313 inches minimum and 0.363 inches maximum thread length, hexagon head style, right-hand thread direction
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
- 0.313 inches minimum and 0.363 inches maximum
- Fastener Length
- 0.823 inches minimum and 0.853 inches maximum
- Head Style
- hexagon
- Head Height
- 0.110 inches minimum and 0.125 inches maximum
- Width Between Flats
- 0.367 inches minimum and 0.376 inches maximum
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Surface Finish
- 63.0 microinches bearing surface of head
- Surface Finish
- 63.0 microinches grip
- Surface Finish
- 63.0 microinches threads
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- titanium alloy uns r54520 overall
- Material Document And Classification
- nas 621 6al-4v assn std single material response overall
- Surface Treatment
- aluminum overall
- Surface Treatment Document And Classification
- mil-c-83488 ty 2 cl 3 mil spec 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 |
|---|---|
| 801651-3-8 | Machine Bolt |
| MB251-3-8 | Machine Bolt |
| PBF1264-3-8 | Machine Bolt |
| SC2663-3-8 | Machine Bolt |
| ST3M731-3-8 | Machine Bolt |
| VS3207-3-8 | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-01-239-9394?
Does the NSN 5306-01-239-9394 have a Schedule B code assigned?
Does NSN 5306-01-239-9394 require demilitarization?
Does NSN 5306-01-239-9394 contain precious materials?
Does NSN 5306-01-239-9394 contain hazardous materials?
When the NSN 5306-01-239-9394 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:
