The Turnbuckle, cataloged under National Stock Number 5340-01-309-1028, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-309-1028 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 BOLT AND 2 NUT |
| Take-Up Distance | 6.000 INCHES NOMINAL IN |
| Length | 11.500 INCHES NOMINAL IN |
| Body Style | HEX OPEN BODY |
| End Style | CLEVIS AND CLEVIS |
| Nominal Thread Size | 0.375 INCHES BODY IN |
| Specification/standard Data | 80205-NAS1047 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Body Length | 7.124 INCHES NOMINAL IN |
| Fork Width | 0.500 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Pinhole Diameter | 0.312 INCHES NOMINAL IN |
| Thread Class | 2B BODY |
| Material | STEEL 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 |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| NAS1047-6P060 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1047 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5340-01-309-1028 is a Turnbuckle, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-606-9608. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-309-1028: Furnished Items and Quantity: 2 BOLT AND 2 NUT; Take-Up Distance: 6.000 INCHES NOMINAL IN; Length: 11.500 INCHES NOMINAL IN; Body Style: HEX OPEN BODY. 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.