NSN 4820-01-084-5506 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-084-5506. Manufacturer of record part number: 911-170 ITEM 39.
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-084-5506, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Donaldson Company, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-084-5506
Primary Part Number
911-170 ITEM 39
Item Name
Stem,fluid Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Donaldson Company, Inc.
Status
ACTIVE
Material
STEEL COMP 303
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4330-01-085-49971004-304-1POSSIBLE MATCH
PRESSURE BLOCK,FILTER
Possible match (shared part number)Donaldson Company, Inc.
4820-01-091-28412001-278POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Donaldson Company, Inc.
4820-01-119-95061004-302POSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Donaldson Company, Inc.
4820-01-120-56772001-279POSSIBLE MATCH
LOCKING BOLT,VALVE
Possible match (shared part number)Donaldson Company, Inc.
4820-01-120-88984110-132POSSIBLE MATCH
VALVE,CHECK
Possible match (shared part number)Donaldson Company, Inc.
4730-01-121-63981009-1228POSSIBLE MATCH
COUPLING,TUBE
Possible match (shared part number)Donaldson Company, Inc.
4330-01-121-63994110-133POSSIBLE MATCH
VALVE,CHECK,FILTER
Possible match (shared part number)Donaldson Company, Inc.
4330-01-127-51711009-1225POSSIBLE MATCH
QUILL,LARGE
Possible match (shared part number)Donaldson Company, Inc.
4330-01-343-8537POSSIBLE MATCH
FILTER ASSEMBLY,FLUID
Possible match (shared part number)
5305-01-470-35621009-1448POSSIBLE MATCH
SETSCREW
Possible match (shared part number)Donaldson Company, Inc.
NSN 4820-01-084-5506 is a Stem,fluid Valve, manufactured by Donaldson Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-084-5506?
NSN 4820-01-084-5506 has 2 manufacturer part numbers on file: 911-170 ITEM 39 (Donaldson Company, Inc.), 1009-1304 (Donaldson Company, Inc.).
What NSN replaces 4820-01-084-5506?
10 possible matches (shared part number, not a government interchangeability claim): 4330-01-085-4997, 4820-01-091-2841, 4820-01-119-9506. Verify interchangeability with system specifications before substitution.
What are the specifications of 911-170 ITEM 39?
Key specifications for 911-170 ITEM 39: Material: STEEL COMP 303. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-084-5506 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.