PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G227-275X6Turnbuckle

The Crosby Group Llc Dba the Crosby Group · NSN 5340-00-985-0408 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-985-0408 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-985-0408. Primary manufacturer part number: G227-275X6.
Features
  • Turnbuckle — FSC 5340
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) BODY
  • Material: STEEL OVERALL
  • Surface Treatment: ZINC OVERALL
  • Pinhole Diameter: 0.327 INCHES NOMINAL IN
  • Eye Width: 0.513 INCHES NOMINAL IN
  • Body Length: 7.125 INCHES NOMINAL IN
  • Nominal Thread Size: 0.375 INCHES BODY IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Turnbuckle, cataloged under National Stock Number 5340-00-985-0408, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Crosby Group Llc Dba the Crosby Group. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-985-0408
Primary Part NumberG227-275X6
Item NameTurnbuckle
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerThe Crosby Group Llc Dba the Crosby Group
StatusCANCELLED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) BODY
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Pinhole Diameter0.327 INCHES NOMINAL IN
Eye Width0.513 INCHES NOMINAL IN
Body Length7.125 INCHES NOMINAL IN
Nominal Thread Size0.375 INCHES BODY IN
Take-Up Distance6.000 INCHES NOMINAL IN
Fork Width0.500 INCHES NOMINAL IN
Body StyleROUND OPEN BODY
Thread Class2B BODY
Length11.625 INCHES NOMINAL IN
End StyleCLEVIS AND CLOSED EYE
Nondefinitive Spec/std Data8 CLASS AND 1 FORM AND 1 TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-003-6685
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5340-00-187-8186ASTM F 1145-5 SUCCESSOR
Turnbuckle
Astm Institute for Standards Research (inc)
Bolt,eye
Turnbuckle
Bolt,eye
Bolt,hook
Bolt,eye
5340-00-158-4230G225-5-16X4-1-2 SUCCESSOR
Turnbuckle
The Crosby Group Llc Dba the Crosby Group
Turnbuckle
Turnbuckle
Turnbuckle
Cross-Reference Index
Part NumberManufacturer
9986640 Whitcraft Llc Dba Pursuit Aerospace (USA)
G227-275X6 PRIMARY The Crosby Group Llc Dba the Crosby Group (USA)
G227-3-8X6 PRIMARY The Crosby Group Llc Dba the Crosby Group (USA)
151-31856-17 PRIMARY The Boeing Company Div Legacy Am&m (USA)
FF-T-791 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
HG-227 Zf Industrieantriebe Witten Gmbh (DEU)
G227 The Crosby Group Llc Dba the Crosby Group (USA)
23A14EJ6-060 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
23A14EJ6-060 PRIMARY Lockheed Martin Corp (USA)
G-227-3/8 Zf Industrieantriebe Witten Gmbh (DEU)
G-227 Zf Industrieantriebe Witten Gmbh (DEU)
63105 Tld Ace Corp Div Tld Ace (USA)
9986640 Us Army Aviation and Missile Command (USA)
Related Parts
SUCCESSOR 5306-00-003-6685 Bolt,eye
5340-00-187-8186SUCCESSOR
TURNBUCKLE
ASTM F 1145-5
5340-00-052-2622SUCCESSOR
TURNBUCKLE
5306-00-107-9048SUCCESSOR
BOLT,EYE
5306-00-140-4782SUCCESSOR
BOLT,HOOK
5306-00-141-7179SUCCESSOR
BOLT,EYE
5340-00-158-4230SUCCESSOR
TURNBUCKLE
G225-5-16X4-1-2
5340-00-187-8175SUCCESSOR
TURNBUCKLE
5340-00-187-8177SUCCESSOR
TURNBUCKLE
5340-00-187-8181SUCCESSOR
TURNBUCKLE
5340-00-187-8182SUCCESSOR
TURNBUCKLE
5340-00-187-8185SUCCESSOR
TURNBUCKLE

Frequently Asked Questions

What is NSN 5340-00-985-0408?

NSN 5340-00-985-0408 is a Turnbuckle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-985-0408?

NSN 5340-00-985-0408 has 13 cross-referenced part numbers: 9986640 (Whitcraft Llc Dba Pursuit Aerospace), G227-275X6 (The Crosby Group Llc Dba the Crosby Group), G227-3-8X6 (The Crosby Group Llc Dba the Crosby Group), 151-31856-17 (The Boeing Company Div Legacy Am&m), FF-T-791 (Federal Specifications Promulgated by General Services Administration Washington DC) and 8 more.

What NSN replaces 5340-00-985-0408?

There are 12 known substitutes for 5340-00-985-0408: 5340-00-187-8186, 5306-00-003-6685, 5340-00-052-2622 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G227-275X6?

Key specifications for G227-275X6: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) BODY; Material: STEEL OVERALL; Surface Treatment: ZINC OVERALL; Pinhole Diameter: 0.327 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-985-0408 still in active supply?

NSN 5340-00-985-0408 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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