The Clamp,synchro, cataloged under National Stock Number 5340-01-263-4404, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-263-4404 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Length | 1.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | MIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE |
| Nominal Thread Size | 0.190 INCHES IN |
| Height | 0.437 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE |
| Width | 1.000 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | STEEL COMP 1020 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.190 INCHES NOMINAL IN |
| 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 |
|---|---|
| 4SE00198-1 | 5/9 Secondary reference Naval Air Warfare Center Aircraft Division Code 1.3.1 Bldg 562-1 |
| 4SE00198-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-263-4404 is a Clamp,synchro, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-263-4404: Length: 1.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE; Material Document and Classification: MIL-S-7952 MIL SPEC SINGLE MATERIAL RESPONSE; Nominal Thread Size: 0.190 INCHES IN. 12 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.