The Turnbuckle, cataloged under National Stock Number 5340-01-503-4038, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-503-4038 |
| Primary Part Number | 12910760-3 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Take-Up Distance | 7.500 INCHES NOMINAL IN |
| Eye Width | 2.750 INCHES NOMINAL IN |
| Length | 22.060 INCHES NOMINAL IN |
| Body Style | ROUND OPEN BODY |
| End Style | CLEVIS AND CLOSED EYE |
| Thread Length | 5.500 INCHES NOMINAL OVERALL IN |
| Material Document and Classification | ASTMF1145 TYPE 1 GRADE 1 CLASSH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND OVERALL |
| Nominal Thread Size | 0.875 INCHES OVERALL IN |
| Body Length | 15.000 INCHES NOMINAL IN |
| Fork Width | 1.125 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Pinhole Diameter | 0.750 INCHES NOMINAL IN |
| Thread Class | 2A OVERALL A |
| Thread Quantity Per Inch | 9 OVERALL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 12910760-3 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 026660 | Chicago Hardware and Fixture Company (USA) |
| Reference | Meaning |
|---|---|
| 12910760 | D/9 Drawing number reference only Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 12910760-3 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 5340-01-503-4038 is a Turnbuckle, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-503-4038 has 2 manufacturer part numbers on file: 12910760-3 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 026660 (Chicago Hardware and Fixture Company).
Key specifications for 12910760-3: Take-Up Distance: 7.500 INCHES NOMINAL IN; Eye Width: 2.750 INCHES NOMINAL IN; Length: 22.060 INCHES NOMINAL IN; Body Style: ROUND OPEN BODY. 17 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.