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Turnlock Fastener Stud

NSN: 5325-01-509-5671 | Model: CA18112-1TS

A pinlike item designed to turn within and be held in place by an eyelet, turnlock fastener; ring, retaining; or the surface of the item it fastens. It is provided with either a cam slot, cam lead threads, or a hold for accommodating a pin. Securing is accomplished by mating with a lockspring, turnlock fastener or receptacle, turnlock fastener. It has either provisions to accommodate a knob or extension or has a head which has provisions to facilitate turning.

NSN Properties and Flags
NATO Stock Number
Grip Length
Between 0.150 inches and 0.220 inches
0.329 inches
End Application
Helicopter, uh-tiger
Turnlock Stud Shank Style
Stud shank
Extension Length
0.210 inches
Turnlock Stud Head Style
Flat countersunk
Drive Type
Torque set
Stud Thread Size And Series/type Designator
0.164-32-3b unc
Stud Shank Major Diameter
Between 0.2470 inches and 0.2495 inches
Steel comp 4140 or steel comp 8740
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response
Surface Treatment
Surface Treatment Specification
Qq-p-416, type ii, class 2 federal specification single treatment response

Inventory Check

The last inventory check on this NSN was done on 05/04/2021. Due to rapid changes in inventory this may not be the current stock qty.

  • New Surplus: 58
  • New: 1948

Pricing and Availability

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NSN 5325-01-509-5671 Datasheet

Supply Class (FSC):
Fastening Devices
Cross Reference:
  • CA18112-1TS
Cage Codes:
  • Arconic Global Fasteners & Rings, (CAGE 29372)
Schedule B & Trade:
  • Schedule B: 9607190000 (NAICS 339993)

    Slide fasteners, nesoi

  • SITC: 89985

    Slide fasteners

  • End Use: 12640

    Finished textile supplies


N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


A - Item does not contain precious metal.


A - No known electrostatic discharge (esd) or electromagnetic interference (emi) sensitivity.


- Represents items with no adp components


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 5325-01-509-5671 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Czech Republic, Brazil, Spain, and Germany
What is the NIIN of NSN 5325-01-509-5671?
015095671 or 01-509-5671
Does NSN 5325-01-509-5671 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5325-01-509-5671?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jun 25, 2003