PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1206-540-Z3CStud,turnlock Fastener

Southco Inc · NSN 5325-00-449-3119 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-449-3119 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-449-3119. Primary manufacturer part number: 1206-540-Z3C.
Features
  • Stud,turnlock Fastener — FSC 5325
  • Material: STEEL OVERALL
  • Stud Shank Major Diameter: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
  • Drive Type: SLOTTED
  • Turnlock Stud Head Style: FLAT COUNTERSUNK
  • Shank Neck Length: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
  • Turnlock Stud Shank Style: STUD SHANK
  • Material Accommodated Thickness: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-449-3119, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Southco Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-449-3119
Primary Part Number1206-540-Z3C
Item NameStud,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusCANCELLED
MaterialSTEEL OVERALL
Stud Shank Major Diameter0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Drive TypeSLOTTED
Turnlock Stud Head StyleFLAT COUNTERSUNK
Shank Neck Length0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
Turnlock Stud Shank StyleSTUD SHANK
Material Accommodated Thickness0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Diameter0.562 INCHES NOMINAL IN
Grip Length0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5310-00-732-0559 INTERCHANGEABLE
Nut,plain,hexagon
5305-01-199-2134F540 INTERCHANGEABLE
Screw,machine
Cvg Sprague Devices, Llc Dba Cvg Sprague Devices, Llc
Cross-Reference Index
Part NumberManufacturer
1206-540-Z3C PRIMARY Southco Inc (USA)
F5-40 Southco Inc (USA)
Related Parts
5310-00-732-0559INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5305-01-199-2134INTERCHANGEABLE
SCREW,MACHINE
F540

Frequently Asked Questions

What is NSN 5325-00-449-3119?

NSN 5325-00-449-3119 is a Stud,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-449-3119?

NSN 5325-00-449-3119 has 2 cross-referenced part numbers: 1206-540-Z3C (Southco Inc), F5-40 (Southco Inc).

What NSN replaces 5325-00-449-3119?

There are 2 known substitutes for 5325-00-449-3119: 5310-00-732-0559, 5305-01-199-2134. Verify interchangeability with system specifications before substitution.

What are the specifications of 1206-540-Z3C?

Key specifications for 1206-540-Z3C: Material: STEEL OVERALL; Stud Shank Major Diameter: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Drive Type: SLOTTED; Turnlock Stud Head Style: FLAT COUNTERSUNK. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-449-3119 still in active supply?

NSN 5325-00-449-3119 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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