721-8541927-66
View detailed technical data, stock status, and sourcing information for: 721-8541927-66
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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.
right-hand thread direction, flat chamfer head style, 3a thread class, 1.250 inches nominal thread length, 1.500 inches nominal 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
- 1.250 inches nominal
- Fastener Length
- 1.500 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.735 inches minimum and 0.750 inches maximum
- Head Height
- 0.492 inches minimum and 0.500 inches maximum
- Locking Feature
- patch or pellet locking feature
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.500 inches
- Width Across Flats
- 0.375 inches nominal
- Thread Quantity Per Inch
- 13
- Minimum Tensile Strength
- 130000 pounds per square inch
- Minimum Yield Strength
- 90000 pounds per square inch
- Chamfer Angle
- 30.0 degrees minimum and 45.0 degrees maximum
- Part Name Assigned By Controlling Agency
- socket head cap screw
- Material
- nickel alloy 500 fastener
- Material Document And Classification
- qq-n-286, annealed and age hardened fed spec single material response fastener
- Thread Series Designator
- unc
- Specification/Standard Data
- 81349-mil-dtl-1222j government specification
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 |
|---|---|
| 721-8541927-66 | Socket Head Cap Screw |
| M1222SN8C324NCLN | Socket Head Cap Screw |
| R8611509-66 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-723-3081?
Does the NSN 5305-01-723-3081 have a Schedule B code assigned?
Does NSN 5305-01-723-3081 require demilitarization?
Does NSN 5305-01-723-3081 contain precious materials?
Does NSN 5305-01-723-3081 contain hazardous materials?
When the NSN 5305-01-723-3081 was assigned to the Federal Catalog?
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