PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40S56-10Stud Assembly,turnlock Fastener

Howmet Global Fastening Systems Inc Div Camloc Products · NSN 5325-00-968-7735 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-968-7735 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-968-7735. Primary manufacturer part number: 40S56-10.
Features
  • Stud Assembly,turnlock Fastener — FSC 5325
  • Material: STEEL OVERALL
  • Turnlock Stud Head Style: FLAT COUNTERSUNK
  • Eyelet Length: 0.384 INCHES NOMINAL IN
  • Distance From Engaging Member to Largest Bearing Surface of Head: 0.698 INCHES NOMINAL IN
  • Stud Assembly Style: STUD ASSEMBLY
  • Eyelet Outside Diameter: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
  • Diameter: 0.384 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-968-7735, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Camloc Products. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5325-00-968-7735
Primary Part Number40S56-10
Item NameStud Assembly,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc Div Camloc Products
StatusACTIVE
MaterialSTEEL OVERALL
Turnlock Stud Head StyleFLAT COUNTERSUNK
Eyelet Length0.384 INCHES NOMINAL IN
Distance From Engaging Member to Largest Bearing Surface of Head0.698 INCHES NOMINAL IN
Stud Assembly StyleSTUD ASSEMBLY
Eyelet Outside Diameter0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
Diameter0.384 INCHES NOMINAL IN
Drive TypeSLOTTED
Material Accommodated Thickness0.025 INCHES NOMINAL IN
Surface TreatmentNICKEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5325-00-256-2846 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
40S56-10 PRIMARY Howmet Global Fastening Systems Inc Div Camloc Products (USA)
10050644 Us Army Aviation and Missile Command (USA)
Related Parts
5325-00-256-2846INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5325-00-968-7735?

NSN 5325-00-968-7735 is a Stud Assembly,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-968-7735?

NSN 5325-00-968-7735 has 2 cross-referenced part numbers: 40S56-10 (Howmet Global Fastening Systems Inc Div Camloc Products), 10050644 (Us Army Aviation and Missile Command).

What NSN replaces 5325-00-968-7735?

There is 1 known substitute for 5325-00-968-7735: 5325-00-256-2846. Verify interchangeability with system specifications before substitution.

What are the specifications of 40S56-10?

Key specifications for 40S56-10: Material: STEEL OVERALL; Turnlock Stud Head Style: FLAT COUNTERSUNK; Eyelet Length: 0.384 INCHES NOMINAL IN; Distance From Engaging Member to Largest Bearing Surface of Head: 0.698 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com