PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85-11-280-17Stud,turnlock Fastener

Southco Inc · NSN 5325-00-944-7691 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-944-7691 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-944-7691. Primary manufacturer part number: 85-11-280-17.
Features
  • Stud,turnlock Fastener — FSC 5325
  • Diameter: 0.362 INCHES NOMINAL IN
  • Turnlock Stud Head Style: FILLISTER
  • Drive Type: SLOTTED
  • Material: STEEL OVERALL
  • Stud Shank Major Diameter: 0.290 INCHES NOMINAL IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Grip Length: 0.540 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-944-7691, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-944-7691
Primary Part Number85-11-280-17
Item NameStud,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusCANCELLED
Diameter0.362 INCHES NOMINAL IN
Turnlock Stud Head StyleFILLISTER
Drive TypeSLOTTED
MaterialSTEEL OVERALL
Stud Shank Major Diameter0.290 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Grip Length0.540 INCHES NOMINAL IN
Turnlock Stud Shank StyleSTUD SHANK
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Shank Neck Length0.385 INCHES NOMINAL IN
Material Accommodated Thickness0.270 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN
Securing Device TypeRING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5325-00-286-55455-0-280A INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc New York Div
5325-01-388-429785-11-280-16 INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc
Cross-Reference Index
Part NumberManufacturer
8549657-10 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
85-11-280-16 Zf Industrieantriebe Witten Gmbh (DEU)
8549657-10 L3 Technologies, Inc. Div Communication Systems-East (USA)
85-11-280-17 PRIMARY Southco Inc (USA)
SS399-12 Southco Inc (USA)
Related Parts
5325-00-286-5545INTERCHANGEABLE
STUD,TURNLOCK FASTENER
5-0-280A
5325-01-388-4297INTERCHANGEABLE
STUD,TURNLOCK FASTENER
85-11-280-16

Frequently Asked Questions

What is NSN 5325-00-944-7691?

NSN 5325-00-944-7691 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 5325-00-944-7691?

NSN 5325-00-944-7691 has 5 cross-referenced part numbers: 8549657-10 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 85-11-280-16 (Zf Industrieantriebe Witten Gmbh), 8549657-10 (L3 Technologies, Inc. Div Communication Systems-East), 85-11-280-17 (Southco Inc), SS399-12 (Southco Inc).

What NSN replaces 5325-00-944-7691?

There are 2 known substitutes for 5325-00-944-7691: 5325-00-286-5545, 5325-01-388-4297. Verify interchangeability with system specifications before substitution.

What are the specifications of 85-11-280-17?

Key specifications for 85-11-280-17: Diameter: 0.362 INCHES NOMINAL IN; Turnlock Stud Head Style: FILLISTER; Drive Type: SLOTTED; Material: STEEL OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-944-7691 still in active supply?

NSN 5325-00-944-7691 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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