PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D4-AJ3-25Stud,turnlock Fastener

Southco Inc · NSN 5325-01-625-7378 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-625-7378 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-625-7378. Primary manufacturer part number: D4-AJ3-25.
Features
  • Stud,turnlock Fastener — FSC 5325
  • 3 verified cross-references
  • Primary manufacturer: Southco Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-625-7378, 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. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameStud,turnlock Fastener
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersSouthco Inc (CAGE 94222); Northrop Grumman Systems Corporation (CAGE 26512); Electro Soft, Inc. Dba Electro Soft Inc (CAGE 74794)
Technical Specifications
ParameterValue
NSN5325-01-625-7378
Primary Part NumberD4-AJ3-25
Item NameStud,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5325-00-282-8132121J-335-C3C INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc
5325-00-285-2012 INTERCHANGEABLE
Stud,turnlock Fastener
Cross-Reference Index
Part NumberManufacturer
D4-AJ3-25 PRIMARY Southco Inc (USA)
GS520E6J25 Northrop Grumman Systems Corporation (USA)
121J-335-C3C PRIMARY Electro Soft, Inc. Dba Electro Soft Inc (USA)
Related Parts
5325-00-282-8132INTERCHANGEABLE
STUD,TURNLOCK FASTENER
121J-335-C3C
5325-00-285-2012INTERCHANGEABLE
STUD,TURNLOCK FASTENER

Frequently Asked Questions

What is NSN 5325-01-625-7378?

NSN 5325-01-625-7378 is a Stud,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-625-7378?

NSN 5325-01-625-7378 has 3 cross-referenced part numbers: D4-AJ3-25 (Southco Inc), GS520E6J25 (Northrop Grumman Systems Corporation), 121J-335-C3C (Electro Soft, Inc. Dba Electro Soft Inc).

What NSN replaces 5325-01-625-7378?

There are 2 known substitutes for 5325-01-625-7378: 5325-00-282-8132, 5325-00-285-2012. Verify interchangeability with system specifications before substitution.

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