National Stock number : 5305-01-389-7197
Machine Screw
| Available Quantity | 2,176 |
| Available Conditions | NE NS |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 12/02/2025 |
Part-Number.info Quality System
- ISO 9001:2015 + AS9120B Certifed
- Audited supply chain
- Counterfeit Parts Prevention
- 100% Product Inspections
- 7 Year Record Retention
- HAZMAT Certified
- ITAR and DDTC Registered
Product Properties
Description
Machine Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.250in. ⁓1/4"
Fastener Length
0.220in. and 0.250in. ⁓1/4"
Head Style
flat chamfer
Head Diameter
0.218in. and 0.226in.
Head Height
0.134in. and 0.138in. ⁓9/64"
Width Between Flats
0.1094in. and 0.1111in.
Internal Drive Style
Nominal Thread Diameter
0.138in. (UTS #6)
Width Across Flats
0.1094in. and 0.1111in. ⁓1/8"
Thread Quantity Per Inch
40
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
33.0 rockwell c and 42.0 rockwell c
Screw Material
iron alloy 660
Screw Material Document And Classification
ams 5731 assn std single material response or ams 5737 assn std single material response
Screw Surface Treatment
passivate
Screw Surface Treatment Document And Classification
QQ-P-35 fed spec single treatment response
Thread Series Designator
unrf
Specification/standard Data
80205-NAS1351 professional/industrial association standard
