PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1219-852-Z3YLock Spring,turnlock Fastener

Southco Inc · NSN 5325-00-449-3006 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-449-3006 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-449-3006. Primary manufacturer part number: 1219-852-Z3Y.
Features
  • Lock Spring,turnlock Fastener — FSC 5325
  • Material: STEEL OVERALL
  • Lockspring Style: LOCKSPRING
  • Surface Treatment: CADMIUM OVERALL
  • Lockspring Overall Height: 0.219 INCHES NOMINAL IN
  • Center to Center Distance Between Eyes: 1.000 INCHES NOMINAL IN
  • Stock Diameter: 0.080 INCHES NOMINAL IN
  • Eye Diameter: 0.125 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Lock Spring,turnlock Fastener, cataloged under National Stock Number 5325-00-449-3006, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-449-3006
Primary Part Number1219-852-Z3Y
Item NameLock Spring,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusACTIVE
MaterialSTEEL OVERALL
Lockspring StyleLOCKSPRING
Surface TreatmentCADMIUM OVERALL
Lockspring Overall Height0.219 INCHES NOMINAL IN
Center to Center Distance Between Eyes1.000 INCHES NOMINAL IN
Stock Diameter0.080 INCHES NOMINAL IN
Eye Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-672-2725 INTERCHANGEABLE
Clamp,loop
5320-00-850-3248 INTERCHANGEABLE
Rivet,blind
6110-00-912-4043009124043-00157 INTERCHANGEABLE
Brake,electric
Dla Aviation Engineering Div Department of Defense
3040-00-963-5889911678-1 INTERCHANGEABLE
Brake,magnetic Clut
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
HZA004-001 Measurement Specialties Inc (USA)
1219-852-Z3Y PRIMARY Southco Inc (USA)
SB5-2 Southco Inc (USA)
Related Parts
5340-00-672-2725INTERCHANGEABLE
CLAMP,LOOP
5320-00-850-3248INTERCHANGEABLE
RIVET,BLIND
6110-00-912-4043INTERCHANGEABLE
BRAKE,ELECTRIC
009124043-00157
3040-00-963-5889INTERCHANGEABLE
BRAKE,MAGNETIC CLUT
911678-1

Frequently Asked Questions

What is NSN 5325-00-449-3006?

NSN 5325-00-449-3006 is a Lock Spring,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-449-3006?

NSN 5325-00-449-3006 has 3 cross-referenced part numbers: HZA004-001 (Measurement Specialties Inc), 1219-852-Z3Y (Southco Inc), SB5-2 (Southco Inc).

What NSN replaces 5325-00-449-3006?

There are 4 known substitutes for 5325-00-449-3006: 5340-00-672-2725, 5320-00-850-3248, 6110-00-912-4043 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1219-852-Z3Y?

Key specifications for 1219-852-Z3Y: Material: STEEL OVERALL; Lockspring Style: LOCKSPRING; Surface Treatment: CADMIUM OVERALL; Lockspring Overall Height: 0.219 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

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