The Turnbuckle, cataloged under National Stock Number 5340-00-478-6617, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Crosby Group Llc Dba the Crosby Group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-478-6617 |
| Primary Part Number | G228-7-8X12 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 COTTER PIN AND 2 PIN |
| Take-Up Distance | 12.000 INCHES NOMINAL IN |
| Length | 36.625 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | ROUND OPEN BODY |
| End Style | CLEVIS AND CLEVIS |
| Nominal Thread Size | 0.875 INCHES BODY IN |
| Body Length | 14.625 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 FORM AND 7 CLASS |
| Fork Width | 1.125 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Pinhole Diameter | 0.750 INCHES NOMINAL IN |
| Thread Class | 1B BODY |
| Material | STEEL COMP 1035 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| G228-7-8X12 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| G228-7/8X12 | G.fargamel SAS (FRA) |
| RAR3484 | Naval Group Site De Lorient (FRA) |
| Reference | Meaning |
|---|---|
| FF-T-791 | 4/1 Identification reference U.S. Government activity |
| 1217-133-4 | 3/9 Design control — primary reference Electronics of Clearfield Inc |
NSN 5340-00-478-6617 is a Turnbuckle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-478-6617 has 3 manufacturer part numbers on file: G228-7-8X12 (The Crosby Group Llc Dba the Crosby Group), G228-7/8X12 (G.fargamel SAS), RAR3484 (Naval Group Site De Lorient).
Key specifications for G228-7-8X12: Furnished Items and Quantity: 2 COTTER PIN AND 2 PIN; Take-Up Distance: 12.000 INCHES NOMINAL IN; Length: 36.625 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.