The Piston,valve, cataloged under National Stock Number 4820-01-350-3877, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leroi International Inc Dba Compair Leroi. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-350-3877 |
| Primary Part Number | 59238 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leroi International Inc Dba Compair Leroi |
| Status | ACTIVE |
| Valve Design Control Activity | 53239 |
| 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 |
|---|---|
| 59238 PRIMARY | Leroi International Inc Dba Compair Leroi (USA) |
| 59238 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 59238 | 5/9 Secondary reference Compair Kellogg Div of Robertshaw Controls Co |
NSN 4820-01-350-3877 is a Piston,valve, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-350-3877 has 2 manufacturer part numbers on file: 59238 (Leroi International Inc Dba Compair Leroi), 59238 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-615-7667. Verify interchangeability with system specifications before substitution.
Key specifications for 59238: Special Features: 1ST END,PLAIN;2ND END,PISTON HEAD W/PROVISION FOR O-RING; Valve Design Control Activity: 53239; End Item Identification: COMPRESSOR,HYDROVANE COMPRESSOR CO LTD,MODEL PUTS. 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.
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.