NAS1221-3P-16P
View detailed technical data, stock status, and sourcing information for: NAS1221-3P-16P
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A stud, turnlock fastener over which may be assembled an eyelet, turnlock fastener. Stud(s) without cam slots or cam lead threads are provided with a crosspin or eared nut for locking with the mating receptacle, turnlock fastener. May be spring loaded. For like items having a threaded fastener, see screw assembly, panel or screw, panel fastener.
3a thread class, 0.314 inches minimum and 0.364 inches maximum thread length, right-hand thread direction, flat countersunk head style, 1.324 inches minimum and 1.354 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
- 0.314 inches minimum and 0.364 inches maximum
- Fastener Length
- 1.324 inches minimum and 1.354 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.344 inches minimum and 0.385 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Screw Material
- steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
- Screw Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416 ty 2 class 2 fed spec single treatment response
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas1221 professional/industrial association standard
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-816-0023 | No Name Available | 11/01/2007 |
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 |
|---|---|
| 3MFR1221-3-16P | Machine Screw |
| NAS112-3-16 | Machine Screw |
| NAS1221-3-16P | Machine Screw |
| NAS1221-3P-16P | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-825-3390?
Does the NSN 5305-00-825-3390 have a Schedule B code assigned?
Does NSN 5305-00-825-3390 require demilitarization?
Does NSN 5305-00-825-3390 contain precious materials?
Does NSN 5305-00-825-3390 contain hazardous materials?
When the NSN 5305-00-825-3390 was assigned to the Federal Catalog?
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