The Clamp,synchro, cataloged under National Stock Number 5340-01-068-2168, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 9 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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-068-2168 |
| Primary Part Number | 328946## |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Length | 0.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E3 MIL SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | QQ-S-766,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE |
| Height | 0.0475 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE |
| Width | 0.375 INCHES NOMINAL IN |
| Material | STEEL COMP 301 |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.154 INCHES MINIMUM AND 0.159 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 |
| Part Number | Manufacturer |
|---|---|
| 328946## PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5340-01-068-2168 is a Clamp,synchro, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-068-2168 has 1 manufacturer part number on file: 328946## (Northrop Grumman Systems Corporation).
Key specifications for 328946##: Length: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072,FINISH E3 MIL SPEC SINGLE TREATMENT RESPONSE; Material Document and Classification: QQ-S-766,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE; Height: 0.0475 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN. 9 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.