The Clamp,synchro, cataloged under National Stock Number 5340-00-073-2431, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Timber Top Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-073-2431 |
| Primary Part Number | 212052-331 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Timber Top Inc |
| Status | ACTIVE |
| Length | 0.265 INCHES MAXIMUM IN |
| Material Document and Classification | AISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-M-20693,COMP A,TYPE 1 MIL SPEC 2ND MATERIAL RESPONSE |
| Nominal Thread Size | 0.086 INCHES IN |
| Height | 0.165 INCHES NOMINAL IN |
| Width | 0.223 INCHES NOMINAL IN |
| Thread Class | 2B |
| Material | STEEL COMP 1012 OR PLASTIC POLYHEXAMETHYLENE AMIDE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 212052-331 PRIMARY | Timber Top Inc (USA) |
| Reference | Meaning |
|---|---|
| 9M212 | 5/9 Secondary reference Penn Meter Co |
| 9M212 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5340-00-073-2431 is a Clamp,synchro, manufactured by Timber Top Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-073-2431 has 1 manufacturer part number on file: 212052-331 (Timber Top Inc).
Key specifications for 212052-331: Length: 0.265 INCHES MAXIMUM IN; Material Document and Classification: AISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-M-20693,COMP A,TYPE 1 MIL SPEC 2ND MATERIAL RESPONSE; Nominal Thread Size: 0.086 INCHES IN; Height: 0.165 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.