The Turnbuckle Body, cataloged under National Stock Number 5340-01-005-0743, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-005-0743 |
| Primary Part Number | AD31972-4 |
| Item Name | Turnbuckle Body |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Body Style | HEX CLOSED BODY |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Size | 0.500 INCHES BODY IN |
| Body Length | 2.000 INCHES NOMINAL IN |
| Thread Class | 3B BODY |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| AD31972-4 | Connecticut Aircraft Products, Inc (USA) |
| AD31972-4 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| AD31972-4 | Horst Engineering & Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| AD-31972-4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5340-01-005-0743 is a Turnbuckle Body, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-005-0743 has 3 manufacturer part numbers on file: AD31972-4 (Connecticut Aircraft Products, Inc), AD31972-4 (Hamilton Sundstrand Corporation Dba Collins Aerospace), AD31972-4 (Horst Engineering & Manufacturing Co).
Key specifications for AD31972-4: Body Style: HEX CLOSED BODY; Material Document and Classification: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL; Nominal Thread Size: 0.500 INCHES BODY IN; Body Length: 2.000 INCHES NOMINAL IN. 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.