The Clamp,synchro, cataloged under National Stock Number 5340-01-040-9819, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-040-9819 |
| Primary Part Number | 5165239 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 0.693 INCHES NOMINAL IN |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE |
| Nominal Thread Size | 0.112 INCHES IN |
| Height | 0.156 INCHES NOMINAL IN |
| Width | 0.250 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL COMP 316 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Diameter | 0.112 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 |
|---|---|
| 5165239 PRIMARY | Naval Sea Systems Command (USA) |
| 109074-362 | Timber Top Inc (USA) |
| Reference | Meaning |
|---|---|
| 2856480 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| 5340PL1250277 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5340-01-040-9819 is a Clamp,synchro, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-040-9819 has 2 manufacturer part numbers on file: 5165239 (Naval Sea Systems Command), 109074-362 (Timber Top Inc).
Key specifications for 5165239: Length: 0.693 INCHES NOMINAL IN; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE; Nominal Thread Size: 0.112 INCHES IN; Height: 0.156 INCHES NOMINAL 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.