The Clamp,synchro, cataloged under National Stock Number 5340-01-274-1636, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-274-1636 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | QQ-A-225/6,TEMPER 351 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 0.312 INCHES NOMINAL IN |
| Height | 0.130 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY 2024 |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.138 INCHES MINIMUM AND 0.142 INCHES MAXIMUM 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 |
|---|---|
| 275525 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-274-1636 is a Clamp,synchro, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-274-1636: Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE; Material Document and Classification: QQ-A-225/6,TEMPER 351 FED SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 0.312 INCHES NOMINAL IN; Height: 0.130 INCHES NOMINAL IN. 8 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.