The Turnbuckle, cataloged under National Stock Number 5340-00-243-6704, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-243-6704 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Accommodated Wire Rope Diameter | 0.438 INCHES NOMINAL IN |
| Furnished Items and Quantity | 1 SISTER HOOK |
| Take-Up Distance | 6.000 INCHES NOMINAL IN |
| Length | 19.562 INCHES NOMINAL IN |
| Body Style | ROUND CLOSED BODY |
| End Style | WERE ROPE SOCKET AND CLEVIS |
| Wire Rope Retention Method | SOLID WEDGE |
| Material Document and Classification | MIL-C-15726,COMP 90-10 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Locking Device Type | NUT |
| Nominal Thread Size | 0.375 INCHES BODY IN |
| Body Length | 7.625 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 3 TYPE AND B CLASS AND 1 FORM |
| Fork Width | 0.875 INCHES NOMINAL IN |
| Thread Class | 2B BODY |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | ACME 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 |
|---|---|
| MIL-S-21433 | 4/1 Identification reference U.S. Government activity |
| M21433 TYIII CLB FM1 19.562 | 2/2 Government specification standardization U.S. Government activity |
| MILS21433TYPE3CLASSBF0RM1 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-00-243-6704 is a Turnbuckle, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-243-6704: Accommodated Wire Rope Diameter: 0.438 INCHES NOMINAL IN; Furnished Items and Quantity: 1 SISTER HOOK; Take-Up Distance: 6.000 INCHES NOMINAL IN; Length: 19.562 INCHES NOMINAL IN. 16 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.