The Turnbuckle, cataloged under National Stock Number 5340-00-038-4099, 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 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-038-4099 |
| Primary Part Number | G227-1X12 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Crosby Group Llc Dba the Crosby Group |
| Status | ACTIVE |
| Take-Up Distance | 12.000 INCHES NOMINAL IN |
| Eye Width | 1.438 INCHES NOMINAL IN |
| Length | 26.875 INCHES NOMINAL IN |
| Body Style | FLAT OPEN BUCKLE |
| End Style | CLEVIS AND CLOSED EYE |
| Nominal Thread Size | 1.000 INCHES BODY IN |
| Body Length | 15.000 INCHES NOMINAL IN |
| Fork Width | 1.188 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Pinhole Diameter | 0.875 INCHES NOMINAL IN |
| Thread Class | 1B BODY |
| Material | STEEL BODY |
| Material | STEEL END PULL |
| 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 |
|---|---|
| G227-1X12 PRIMARY | The Crosby Group Llc Dba the Crosby Group (USA) |
| Reference | Meaning |
|---|---|
| 015-4174-000 | 7/2 Vendor item drawing reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5340-00-038-4099 is a Turnbuckle, manufactured by The Crosby Group Llc Dba the Crosby Group, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-038-4099 has 1 manufacturer part number on file: G227-1X12 (The Crosby Group Llc Dba the Crosby Group).
1 possible match (shared part number, not a government interchangeability claim): 5340-00-598-3401. Verify interchangeability with system specifications before substitution.
Key specifications for G227-1X12: Take-Up Distance: 12.000 INCHES NOMINAL IN; Eye Width: 1.438 INCHES NOMINAL IN; Length: 26.875 INCHES NOMINAL IN; Body Style: FLAT OPEN BUCKLE. 14 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.