PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D4-AJ335CBCNAStud,turnlock Fastener

Southco Inc · NSN 5325-01-178-0122 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-178-0122 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-178-0122. Primary manufacturer part number: D4-AJ335CBCNA.
Features
  • Stud,turnlock Fastener — FSC 5325
  • Turnlock Stud Head Style: FILLISTER
  • Material: STEEL OVERALL
  • Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
  • Grip Length: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
  • Drive Type: SOCKET
  • Shank Neck Length: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
  • Turnlock Stud Shank Style: STUD SHANK
Applications
  • Applications requiring Steel Overall construction
General Description

The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-178-0122, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-178-0122
Primary Part NumberD4-AJ335CBCNA
Item NameStud,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusACTIVE
Turnlock Stud Head StyleFILLISTER
MaterialSTEEL OVERALL
Diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Grip Length0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
Drive TypeSOCKET
Shank Neck Length0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
Turnlock Stud Shank StyleSTUD SHANK
Stud Shank Major Diameter0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5325-00-282-8132121J-335-C3C INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc
Cross-Reference Index
Part NumberManufacturer
D4-AJ335CBCNA PRIMARY Southco Inc (USA)
HS5274-0001 Mcdonnell Douglas Helicopter Co Inc (USA)
HS5274-0001 The Boeing Company (USA)
AJ3-35 Southco Inc (USA)
D4-AJ3-35 Southco Inc (USA)
121J-335-Z3C PRIMARY Southco Inc (USA)
Related Parts
5325-00-282-8132INTERCHANGEABLE
STUD,TURNLOCK FASTENER
121J-335-C3C

Frequently Asked Questions

What is NSN 5325-01-178-0122?

NSN 5325-01-178-0122 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 5325-01-178-0122?

NSN 5325-01-178-0122 has 6 cross-referenced part numbers: D4-AJ335CBCNA (Southco Inc), HS5274-0001 (Mcdonnell Douglas Helicopter Co Inc), HS5274-0001 (The Boeing Company), AJ3-35 (Southco Inc), D4-AJ3-35 (Southco Inc) and 1 more.

What NSN replaces 5325-01-178-0122?

There is 1 known substitute for 5325-01-178-0122: 5325-00-282-8132. Verify interchangeability with system specifications before substitution.

What are the specifications of D4-AJ335CBCNA?

Key specifications for D4-AJ335CBCNA: Turnlock Stud Head Style: FILLISTER; Material: STEEL OVERALL; Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Grip Length: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN. 8 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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