NSN 5305-00-486-2191 NIIN — Close Tolerance Screw

National Stock number : 5305-00-486-2191

Close Tolerance Screw


Available Quantity 873
Available Conditions NS NE
Classification Screws - FSC 5305
Schedule B 7318152000
Stock Check Date 04/22/2026
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
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

0.801in. and 0.831in. ⁓27/32"

Head Style

fillister

Head Diameter

0.365in. and 0.375in.

Head Height

0.133in. and 0.150in. ⁓5/32"

Grip Diameter

0.2485in. and 0.2495in.

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.250in. ⁓1/4"

Grip Length

0.490in. and 0.510in.

Thread Quantity Per Inch

28

Minimum Tensile Strength

160000 pounds per square inch

Hardness Rating

36.0 rockwell c and 40.0 rockwell c

Surface Finish

32.0 microinches threads

Material

steel comp 4140 or steel comp E4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 or steel comp 4037

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 or ams 6300 assn std 6th material response

Surface Treatment

nickel and cadmium and chromate

Surface Treatment Document And Classification

AMS2403 assn std 1st treatment response and QQ-P-416, ty 2 fed spec 2nd treatment response

Thread Series Designator

unjf

Pricing and Availability Quote

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National Stock Number
5305-00-486-2191
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