PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G227Turnbuckle

The Crosby Group Llc Dba the Crosby Group · NSN 5340-00-492-5954 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-492-5954 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-492-5954. Primary manufacturer part number: G227.
Features
  • Turnbuckle — FSC 5340
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 FORM AND 8 CLASS
  • End Style: CLEVIS AND CLOSED EYE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) BODY
  • Body Style: FLAT OPEN BUCKLE
  • Fork Width: 0.937 INCHES NOMINAL IN
  • Length: 20.000 INCHES NOMINAL IN
  • Eye Width: 1.000 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Turnbuckle, cataloged under National Stock Number 5340-00-492-5954, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-00-492-5954
Primary Part NumberG227
Item NameTurnbuckle
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerThe Crosby Group Llc Dba the Crosby Group
StatusACTIVE
Nondefinitive Spec/std Data1 TYPE AND 1 FORM AND 8 CLASS
End StyleCLEVIS AND CLOSED EYE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) BODY
Body StyleFLAT OPEN BUCKLE
Fork Width0.937 INCHES NOMINAL IN
Length20.000 INCHES NOMINAL IN
Eye Width1.000 INCHES NOMINAL IN
Pinhole Diameter0.312 INCHES NOMINAL IN
Nominal Thread Size0.750 INCHES BODY IN
Thread Class2B BODY
Body Length11.250 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface TreatmentZINC OVERALL
Take-Up Distance9.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-187-8186ASTM F 1145-5 SUCCESSOR
Turnbuckle
Astm Institute for Standards Research (inc)
5340-00-150-4777ASTM-F1145-I1B 1/2X9 SUCCESSOR
Turnbuckle
American Society for Testing and Materials Dba Astm International
5340-00-168-6315MS27120-10 SUCCESSOR
Clevis,rod End
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-179-9249MS27120-5 SUCCESSOR
Clevis,rod End
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-179-9250MS27954-3 SUCCESSOR
Turnbuckle Body
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-184-2783MS27120-8 SUCCESSOR
Clevis,rod End
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-187-8174ASTM-F1145-I1D 3/8X6 SUCCESSOR
Turnbuckle
American Society for Testing and Materials Dba Astm International
5340-00-187-8176ASTM-F1145-I1D 1/2X9 SUCCESSOR
Turnbuckle
American Society for Testing and Materials Dba Astm International
5340-00-187-8179ASTM-F1145-I1D 5/8X9 SUCCESSOR
Turnbuckle
American Society for Testing and Materials Dba Astm International
5340-00-187-8180ASTM-F1145-I1D 5/8X12 SUCCESSOR
Turnbuckle
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
G227 The Crosby Group Llc Dba the Crosby Group (USA)
FF-T-791 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FFT791-TY1-FM1-CL8-3/4X9 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5340-00-187-8186SUCCESSOR
TURNBUCKLE
ASTM F 1145-5
5340-00-150-4777SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1B 1/2X9
5340-00-168-6315SUCCESSOR
CLEVIS,ROD END
MS27120-10
5340-00-179-9249SUCCESSOR
CLEVIS,ROD END
MS27120-5
5340-00-179-9250SUCCESSOR
TURNBUCKLE BODY
MS27954-3
5340-00-184-2783SUCCESSOR
CLEVIS,ROD END
MS27120-8
5340-00-187-8174SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1D 3/8X6
5340-00-187-8176SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1D 1/2X9
5340-00-187-8179SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1D 5/8X9
5340-00-187-8180SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1D 5/8X12
5340-00-187-8184SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1D 1/4X4
5340-00-187-8192SUCCESSOR
TURNBUCKLE
ASTM-F1145-I1D 1X12

Frequently Asked Questions

What is NSN 5340-00-492-5954?

NSN 5340-00-492-5954 is a Turnbuckle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-492-5954?

NSN 5340-00-492-5954 has 3 cross-referenced part numbers: G227 (The Crosby Group Llc Dba the Crosby Group), FF-T-791 (Federal Specifications Promulgated by General Services Administration Washington DC), FFT791-TY1-FM1-CL8-3/4X9 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5340-00-492-5954?

There are 12 known substitutes for 5340-00-492-5954: 5340-00-187-8186, 5340-00-150-4777, 5340-00-168-6315 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G227?

Key specifications for G227: Nondefinitive Spec/std Data: 1 TYPE AND 1 FORM AND 8 CLASS; End Style: CLEVIS AND CLOSED EYE; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) BODY; Body Style: FLAT OPEN BUCKLE. 14 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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