The Clamp,synchro, cataloged under National Stock Number 5340-00-402-0330, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. 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. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-402-0330 |
| Primary Part Number | 43587 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Length | 0.359 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E3 MIL SPEC SINGLE TREATMENT RESPONSE |
| Height | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE |
| Width | 0.359 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | LOCKNUT |
| Hole Diameter | 0.115 INCHES MINIMUM AND 0.120 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 |
| Part Number | Manufacturer |
|---|---|
| 43587 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
NSN 5340-00-402-0330 is a Clamp,synchro, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-402-0330 has 1 manufacturer part number on file: 43587 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
4 possible matches (shared part number, not a government interchangeability claim): 5845-00-757-3280, 5950-01-350-0758, 5120-01-429-6427. Verify interchangeability with system specifications before substitution.
Key specifications for 43587: Length: 0.359 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072,FINISH E3 MIL SPEC SINGLE TREATMENT RESPONSE; Height: 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Surface Treatment: 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.