NSN 4820-01-173-8438 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-173-8438. Manufacturer of record part number: RPECFAN.
General Characteristics Item Description: 3.940 IN.LG; 0.970 IN.ACROSS CORNERS; 0.880 IN.HEX DIA; 0 TO 25 GPM; 2000 PSI AND ABOVE IN
2 manufacturer part numbers on file
Manufacturer of record: Sun Hydraulics Corporation
Identification
NSN: 4820-01-173-8438
NIIN: 011738438
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: RPECFAN
Manufacturer: Sun Hydraulics Corporation
General Description
The Cartridge,valve,relief, cataloged under National Stock Number 4820-01-173-8438, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-173-8438
Primary Part Number
RPECFAN
Item Name
Cartridge,valve,relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Sun Hydraulics Corporation
Status
ACTIVE
General Characteristics Item Description
3.940 IN.LG; 0.970 IN.ACROSS CORNERS; 0.880 IN.HEX DIA; 0 TO 25 GPM; 2000 PSI AND ABOVE IN
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-173-8438?
NSN 4820-01-173-8438 is a Cartridge,valve,relief, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-173-8438?
NSN 4820-01-173-8438 has 2 manufacturer part numbers on file: 703836-00 (Capitol Engine Co, Inc Dba Salmini Worldwide), RPECFAN (Sun Hydraulics Corporation).
What are the specifications of RPECFAN?
Key specifications for RPECFAN: General Characteristics Item Description: 3.940 IN.LG; 0.970 IN.ACROSS CORNERS; 0.880 IN.HEX DIA; 0 TO 25 GPM; 2000 PSI AND ABOVE IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-173-8438 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.