National Stock number : 5305-01-521-4847
Close Tolerance Screw
| Available Quantity | 4,394 |
| Available Conditions | NE NS SV |
| Classification | Screws - FSC 5305 |
| Schedule B | 8109900000 |
| Stock Check Date | 12/19/2025 |
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
Close Tolerance Screw
Thread Class
3a
Thread Direction
RIGHT-Hand
Thread Length
0.425in. ⁓7/16"
Fastener Length
1.513in. ⁓1-33/64"
Head Style
flat countersunk
Head Diameter
0.465in. and 0.510in.
Grip Diameter
0.250in.
Internal Drive Style
cross recess type 1
End Item Identification
aircraft, B757
Nominal Thread Diameter
0.250in. ⁓1/4"
Grip Length
1.250in.
Thread Quantity Per Inch
28
Countersink Angle
99.0 degrees and 101.0 degrees
Special Features
thread end to be identified w/black dye or paint
Material
titanium alloy
Surface Treatment
aluminum
Thread Series Designator
unjf
