The Vibration Control System, cataloged under National Stock Number 6635-01-557-9607, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 6635-01-557-9607 |
| Primary Part Number | 70600-01816-103 |
| Item Name | Vibration Control System |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 70600-01816-103 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| C99081-001 | 3/2 Design control — primary reference U.S. Government activity |
| 6635PL1952636 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 6635-01-557-9607 is a Vibration Control System, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-557-9607 has 1 manufacturer part number on file: 70600-01816-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70600-01816-103: Part Name Assigned by Controlling Agency: VIBRATION CONTROL ACTUATOR SYSTEM; End Item Identification: UH-60 BLACKHAWK HELICOPTER. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6635-01-557-9607 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.