NSN 5305-00-816-1688 NIIN — Close Tolerance Screw

National Stock number : 5305-00-816-1688

Close Tolerance Screw


Available Quantity 28,171
Available Conditions NE NS AR
Classification Screws - FSC 5305
Schedule B 7318152000
Stock Check Date 10/08/2025
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

Close Tolerance Screw

Thread Class

3a

Thread Direction

RIGHT-Hand

Thread Length

0.291in. and 0.341in. ⁓11/32"

Fastener Length

0.676in. and 0.706in. ⁓23/32"

Head Style

flat countersunk

Head Diameter

0.449in. and 0.507in.

Grip Diameter

0.2485in. and 0.2495in.

Internal Drive Style

HIGH-Torque

Nominal Thread Diameter

0.250in. ⁓1/4"

Grip Length

0.365in. and 0.385in.

Thread Quantity Per Inch

28

Minimum Tensile Strength

160000 pounds per square inch

Hardness Rating

36.0 rockwell c and 40.0 rockwell c

Countersink Angle

100.0 degrees

Material

steel comp 4140 or steel comp E4340 or steel comp 6150 or steel comp 8735 or steel comp 8740

Material Document And Classification

MIL-S-5626 mil spec 1st material response or MIL-S-5000 mil spec 2nd material response or MIL-S-8503 mil spec 3rd material response or MIL-S-6098 mil spec 4th material response or MIL-S-6049 mil spec 5th material response

Surface Treatment

cadmium and chromate

Surface Treatment Document And Classification

QQ-P-416, type 2, class 3 fed spec single treatment response

Thread Series Designator

unjf

Specification/standard Data

80205-NAS1154 professional/industrial association standard

Pricing and Availability Quote

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National Stock Number
5305-00-816-1688
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