NSN 5305-01-399-0166 NIIN — Cap Socket Head Screw

National Stock number : 5305-01-399-0166

Cap Socket Head Screw


Available Quantity 1,319
Available Conditions NE NS
Classification Screws - FSC 5305
Schedule B 7318152000
Stock Check Date 12/16/2025
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
AS9120 Certified Supplier

Product Properties


Description

Cap Socket Head Screw

Thread Class

3a

Thread Direction

RIGHT-Hand

Thread Length

2.300in. and 2.500in. ⁓2-1/2"

Fastener Length

2.420in. and 2.500in. ⁓2-1/2"

Head Style

flat countersunk

Head Diameter

1.355in. and 1.438in.

Internal Drive Style

hexagon

Nominal Thread Diameter

0.750in. ⁓3/4"

Width Across Flats

0.500in. ⁓1/2"

Thread Quantity Per Inch

10

Minimum Tensile Strength

170000 pounds per square inch

Hardness Rating

37.0 rockwell c and 45.0 rockwell c

Countersink Angle

80.0 degrees and 84.0 degrees

Material

steel

Material Document And Classification

astm A574 assn std single material response

Surface Treatment

zinc

Surface Treatment Document And Classification

astm B633, type 2, class fe/zn 5 assn std single treatment response

Thread Series Designator

unc

Pricing and Availability Quote

Review your quote then place an order for this NSN

National Stock Number
5305-01-399-0166
Quantity:
Your Email:
Phone:
Ref. / PO #:
Company:
Your Name: