The Turnbuckle, cataloged under National Stock Number 5340-01-268-9139, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-268-9139 |
| Primary Part Number | 2999T71 |
| Item Name | Turnbuckle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Take-Up Distance | 24.000 INCHES NOMINAL IN |
| Length | 38.625 INCHES NOMINAL IN |
| Body Style | FLAT OPEN BUCKLE |
| End Style | HOOK AND HOOK |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 FORM AND 5 CLASS |
| Surface Treatment | ZINC BODY |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| 2999T71 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| FF-T-791 | 4/1 Identification reference U.S. Government activity |
| 2997T71 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 5340-01-268-9139 is a Turnbuckle, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-268-9139 has 1 manufacturer part number on file: 2999T71 (Mcmaster-Carr Supply Co).
Key specifications for 2999T71: Take-Up Distance: 24.000 INCHES NOMINAL IN; Length: 38.625 INCHES NOMINAL IN; Body Style: FLAT OPEN BUCKLE; End Style: HOOK AND HOOK. 7 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.