National Stock number : 5305-00-814-7961
Machine Screw
| Available Quantity | 77,311 |
| Available Conditions | NE NS |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 02/17/2026 |
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
0.251in. and 0.301in. ⁓5/16"
Fastener Length
0.449in. and 0.479in. ⁓31/64"
Head Style
pan
Head Diameter
0.306in. and 0.322in.
Head Height
0.105in. and 0.115in. ⁓1/8"
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.164in. (UTS #8)
Thread Quantity Per Inch
32
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 40.0 rockwell c
Screw Material
steel comp 4140 or steel comp E4340 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-6049 mil spec 3rd 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
unjc
Specification/standard Data
80205-NAS623 professional/industrial association standard
