The Clamp,synchro, cataloged under National Stock Number 5340-00-406-3771, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Designatronics Incorporated Div Sterling Instruments Div. Government technical data includes 8 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-406-3771 |
| Primary Part Number | C11 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Designatronics Incorporated Div Sterling Instruments Div |
| Status | ACTIVE |
| Length | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764 FED SPEC 2ND MATERIAL RESPONSE |
| Height | 0.160 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE AND CHROMATE OR PASSIVATE |
| Width | 0.312 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OR STEEL COMP 303 |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.128 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 |
| Part Number | Manufacturer |
|---|---|
| C11 PRIMARY | Designatronics Incorporated Div Sterling Instruments Div (USA) |
NSN 5340-00-406-3771 is a Clamp,synchro, manufactured by Designatronics Incorporated Div Sterling Instruments Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-406-3771 has 1 manufacturer part number on file: C11 (Designatronics Incorporated Div Sterling Instruments Div).
Key specifications for C11: Length: 0.375 INCHES NOMINAL IN; Material Document and Classification: QQ-A-250/4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764 FED SPEC 2ND MATERIAL RESPONSE; Height: 0.160 INCHES NOMINAL IN; Surface Treatment: ANODIZE AND CHROMATE OR PASSIVATE. 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.