The Clamp,synchro, cataloged under National Stock Number 5340-01-365-3288, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-365-3288 |
| Primary Part Number | 90001A3231 |
| Item Name | Clamp,synchro |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
| Status | ACTIVE |
| Length | 1.562 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-13924 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE |
| Nominal Thread Size | 0.250 INCHES IN |
| Effective Height | 0.235 INCHES NOMINAL IN |
| Height | 0.688 INCHES NOMINAL IN |
| Color | BLACK |
| Surface Treatment | OXIDE |
| Width | 1.100 INCHES NOMINAL IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNF |
| Outside Edge to Bolt Hole Center Distance Along Width | 0.550 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 |
|---|---|
| 90001A3231 PRIMARY | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA) |
| 90001A3231 | L3 Technologies, Inc. Dba Telementry & Rf Products Div L3 Technologies, Telemetry & Rf Products (USA) |
| Reference | Meaning |
|---|---|
| 90001A3231 | 5/9 Secondary reference Loral Terracom Div of Loral Corp |
NSN 5340-01-365-3288 is a Clamp,synchro, manufactured by Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-365-3288 has 2 manufacturer part numbers on file: 90001A3231 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service), 90001A3231 (L3 Technologies, Inc. Dba Telementry & Rf Products Div L3 Technologies, Telemetry & Rf Products).
Key specifications for 90001A3231: Length: 1.562 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-13924 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE; Nominal Thread Size: 0.250 INCHES IN; Effective Height: 0.235 INCHES NOMINAL IN. 13 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.