The Piston,compressor, cataloged under National Stock Number 4130-00-374-3235, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Johnson Controls Navy Systems, Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4130-00-374-3235 |
| Primary Part Number | 65-204SM |
| Item Name | Piston,compressor |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Ring Groove Width | 0.188 INCHES NOMINAL IN |
| Integral Connecting Rod | NOT INCLUDED |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | SEMIFINISHED |
| Ring Groove Position and Quantity | NO. 3 AND 4 RING GROOVE AND NO. 1,NO. 2,AND NO. 3 POSITIONS PISTON |
| Diameter | 3.938 INCHES NOMINAL IN |
| Pin | INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 3 |
| Ring | INCLUDED |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 65-204SM PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 167028 | 3/9 Design control — primary reference Johnson Controls Navy Systems, Llc |
| 167028Y | 5/9 Secondary reference Johnson Controls Navy Systems, Llc |
NSN 4130-00-374-3235 is a Piston,compressor, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-00-374-3235 has 1 manufacturer part number on file: 65-204SM (Johnson Controls Navy Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-072-3924. Verify interchangeability with system specifications before substitution.
Key specifications for 65-204SM: Overall Height: 9.125 INCHES NOMINAL IN; Ring Groove Width: 0.188 INCHES NOMINAL IN; Integral Connecting Rod: NOT INCLUDED; Retaining Ring Groove: NOT INCLUDED. 13 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.
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.