National Stock number : 5305-01-066-4443
Shoulder Screw
| Available Quantity | 13 |
| Available Conditions | NE NS AR |
| Classification | Screws - FSC 5305 |
| Schedule B | 7318152000 |
| Stock Check Date | 06/05/2026 |
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
Shoulder Screw
Thread Class
2a
Thread Direction
RIGHT-Hand
Thread Length
0.421in. and 0.453in. ⁓29/64"
Fastener Length
0.801in. and 0.828in. ⁓53/64"
Head Style
flat chamfer
Head Diameter
0.421in. and 0.453in.
Head Height
0.202in. and 0.234in. ⁓15/64"
Shoulder Diameter
0.311in. first shoulder and 0.312in. first shoulder
Shoulder Length
0.375in. first shoulder and 0.380in. first shoulder
Internal Drive Style
hexagon
Nominal Thread Diameter
0.250in. ⁓1/4"
Width Across Flats
0.140in. and 0.172in. ⁓11/64"
Thread Quantity Per Inch
20
Hardness Rating
36.0 rockwell c and 40.0 rockwell c
Shoulder Shape
round first shoulder
Material
steel comp 1137
Material Document And Classification
QQ-S-637 fed spec single material response
Surface Treatment
oxide
Surface Treatment Document And Classification
MIL-C-13924 class 1 mil spec single treatment response
Thread Series Designator
unc
