The Piston Ring Set, cataloged under National Stock Number 1650-01-135-1469, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1650-01-135-1469 |
| Primary Part Number | S30071-339-2 |
| Item Name | Piston Ring Set |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF TWO PISTON RINGS AND ONE EXPANDER |
| 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 |
|---|---|
| S30071-339-2 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S30071-339-1 | 5/9 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
| S30071-339-I | 5/9 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
NSN 1650-01-135-1469 is a Piston Ring Set, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-135-1469 has 1 manufacturer part number on file: S30071-339-2 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for S30071-339-2: General Characteristics Item Description: CONSISTS OF TWO PISTON RINGS AND ONE EXPANDER; End Item Identification: AIRCRAFT MODEL CH-53E. 1 specification is 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 1650-01-135-1469 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.