PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC4-2Lock Spring,turnlock Fastener

Southco Inc · NSN 5325-00-281-4896 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-281-4896 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-281-4896. Primary manufacturer part number: SC4-2.
Features
  • Lock Spring,turnlock Fastener — FSC 5325
  • Eye Diameter: 0.125 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
  • Material Document and Classification: SAE 1085 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Stock Diameter: 0.062 INCHES NOMINAL IN
  • Eye Center to Spring End Distance: 0.687 INCHES NOMINAL IN
  • Lockspring Style: LOCKSPRING
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 5325-00-281-4896, 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: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-281-4896
Primary Part NumberSC4-2
Item NameLock Spring,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusCANCELLED
Eye Diameter0.125 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationSAE 1085 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Stock Diameter0.062 INCHES NOMINAL IN
Eye Center to Spring End Distance0.687 INCHES NOMINAL IN
Lockspring StyleLOCKSPRING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3130-00-227-405306980-12F INTERCHANGEABLE
Bearing Unit,ball
Altra Industrial Motion Corp.
3455-00-284-0121 INTERCHANGEABLE
File,rotary
5330-01-024-5209SC-42 INTERCHANGEABLE
Rubber Strip
Auburn Manufacturing Co, the
5320-01-053-2932 INTERCHANGEABLE
Rivet,blind
Cross-Reference Index
Part NumberManufacturer
SC4-2 Southco Inc (USA)
012-1007-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
012-1007-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
3130-00-227-4053INTERCHANGEABLE
BEARING UNIT,BALL
06980-12F
3455-00-284-0121INTERCHANGEABLE
FILE,ROTARY
5330-01-024-5209INTERCHANGEABLE
RUBBER STRIP
SC-42
5320-01-053-2932INTERCHANGEABLE
RIVET,BLIND

Frequently Asked Questions

What is NSN 5325-00-281-4896?

NSN 5325-00-281-4896 is a Lock Spring,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-281-4896?

NSN 5325-00-281-4896 has 3 cross-referenced part numbers: SC4-2 (Southco Inc), 012-1007-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 012-1007-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5325-00-281-4896?

There are 4 known substitutes for 5325-00-281-4896: 3130-00-227-4053, 3455-00-284-0121, 5330-01-024-5209 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SC4-2?

Key specifications for SC4-2: Eye Diameter: 0.125 INCHES NOMINAL IN; Surface Treatment: CADMIUM OVERALL; Material Document and Classification: SAE 1085 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-281-4896 still in active supply?

NSN 5325-00-281-4896 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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