PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121J-330-C5YStud,turnlock Fastener

Southco Inc · NSN 5325-00-282-8131 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-282-8131 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-282-8131. Primary manufacturer part number: 121J-330-C5Y.
Features
  • Stud,turnlock Fastener — FSC 5325
  • Shank Neck Length: 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Grip Length: 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
  • Turnlock Stud Shank Style: STUD SHANK
  • Material Accommodated Thickness: 0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
  • Stud Shank Major Diameter: 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Applications requiring Steel Comp 1118 Overall construction
General Description

The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-282-8131, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 19 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
NSN5325-00-282-8131
Primary Part Number121J-330-C5Y
Item NameStud,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusCANCELLED
Shank Neck Length0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Grip Length0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Turnlock Stud Shank StyleSTUD SHANK
Material Accommodated Thickness0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Stud Shank Major Diameter0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Diameter0.312 INCHES NOMINAL IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Turnlock Stud Head StyleFLAT COUNTERSUNK
Drive TypeSLOTTED
MaterialSTEEL COMP 1118 OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4930-00-430-3239 INTERCHANGEABLE
Hose
5325-01-133-9400318262 INTERCHANGEABLE
Grommet,nonmetallic
Brp Us Inc
3040-01-313-4588373458 INTERCHANGEABLE
Shaft,shouldered
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
5910-01-446-9264AJ330 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Gast Mfg Corp
Cross-Reference Index
Part NumberManufacturer
AJ3-30CADPL Southco Inc (USA)
57A5A5-1 Naval Air Warfare Center Aircraft Div (USA)
238-101-001 Elettronica Spa (ITA)
012115100 Cardwell Condenser Corp Lapointe-Admiral Div (USA)
AJ3-30 Dzus Fastener Gmbh (DEU)
238-101-001 Elettronica Gmbh (DEU)
AJ3-30CDY Southco Inc (USA)
10858-103 Astronautics Corporation of America (USA)
1-02 Belleville Wire Cloth Co Div Belleville Wire Cloth Company, Inc (USA)
56-5180 Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA)
57A5A5-1 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
31826-2 Raytheon Company Dba Raytheon (USA)
10119083 Nimikkeistokeskus Ncb Finland (FIN)
992321-03 Ge Aviation Systems Llc (USA)
518833 Telenor Comma A/s (NOR)
249459-2 Gould Instrument Systems Inc (USA)
AJ3-30 Southco Inc (USA)
GS520E6J30 Northrop Grumman Systems Corporation (USA)
121J-330-C5Y PRIMARY Southco Inc (USA)
8075098 Us Army Aviation and Missile Command (USA)
Related Parts
4930-00-430-3239INTERCHANGEABLE
HOSE
5325-01-133-9400INTERCHANGEABLE
GROMMET,NONMETALLIC
318262
3040-01-313-4588INTERCHANGEABLE
SHAFT,SHOULDERED
373458
5910-01-446-9264INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
AJ330

Frequently Asked Questions

What is NSN 5325-00-282-8131?

NSN 5325-00-282-8131 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 5325-00-282-8131?

NSN 5325-00-282-8131 has 24 cross-referenced part numbers: AJ3-30CADPL (Southco Inc), 57A5A5-1 (Naval Air Warfare Center Aircraft Div), 238-101-001 (Elettronica Spa), 012115100 (Cardwell Condenser Corp Lapointe-Admiral Div), AJ3-30 (Dzus Fastener Gmbh) and 19 more.

What NSN replaces 5325-00-282-8131?

There are 4 known substitutes for 5325-00-282-8131: 4930-00-430-3239, 5325-01-133-9400, 3040-01-313-4588 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121J-330-C5Y?

Key specifications for 121J-330-C5Y: End Item Identification: HELICOPTER, SEARCH AND RESCUE, HH-60H; AIRCRAFT, C-2A (REPROCURED); HELICOPTER, MH-53E; HELICOPTER, / HH-53H PACE LOW; HELICOPTER, CARRIER BASED A; Shank Neck Length: 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Grip Length: 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-282-8131 still in active supply?

NSN 5325-00-282-8131 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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