Furnished Items and Quantity: 1 DISK AND 1 WASHER AND 1 RING
Valve Type for Which Designed: GLOBE
Largest Outside Diameter: 0.875 INCHES NOMINAL IN
Stem Actuating End Type: THREADED EXTERNALLY
Valve Size for Which Designed: 2.000 INCHES IN
Material: NICKEL ALLOY
Identification
NSN: 4820-01-120-0486
NIIN: 011200486
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-120-0486, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-120-0486
Item Name
Stem,fluid Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Furnished Items and Quantity
1 DISK AND 1 WASHER AND 1 RING
Valve Type for Which Designed
GLOBE
Largest Outside Diameter
0.875 INCHES NOMINAL IN
Stem Actuating End Type
THREADED EXTERNALLY
Valve Size for Which Designed
2.000 INCHES IN
Material
NICKEL ALLOY
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-141-5053803-2177525-C711POSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Naval Ship Systems Command
4820-01-142-1654803-2177525-C7XX-35POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-152-0135803-2177525-C421POSSIBLE MATCH
VALVE,ANGLE
Possible match (shared part number)Naval Ship Systems Command
4820-01-172-2909803-2177525-C351AFPOSSIBLE MATCH
VALVE,CHECK
Possible match (shared part number)Naval Ship Systems Command
4820-01-348-6450POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)
4820-01-472-1392POSSIBLE MATCH
STEM AND DISC ASSY
Possible match (shared part number)
4820-01-515-4149POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)
4820-01-541-4658803-2177525-S3A1AFPOSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Naval Ship Systems Command
4820-01-554-1188803-2177525-C5E1AFPOSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Naval Ship Systems Command
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
810-2177525
D/9Drawing number reference only
Naval Sea Systems Command
803-2177525-M8XX-35
3/2Design control — primary reference
U.S. Government activity
803-21777525
D/9Drawing number reference only
U.S. Government activity
810-2177525-M8XX-35
5/9Secondary reference
Naval Sea Systems Command
Related Parts
4820-01-141-5053POSSIBLE MATCH
VALVE,GLOBE
803-2177525-C711
4820-01-142-1654POSSIBLE MATCH
STEM,FLUID VALVE
803-2177525-C7XX-35
4820-01-152-0135POSSIBLE MATCH
VALVE,ANGLE
803-2177525-C421
4820-01-172-2909POSSIBLE MATCH
VALVE,CHECK
803-2177525-C351AF
4820-01-348-6450POSSIBLE MATCH
STEM,FLUID VALVE
4820-01-472-1392POSSIBLE MATCH
STEM AND DISC ASSY
4820-01-515-4149POSSIBLE MATCH
STEM,FLUID VALVE
4820-01-541-4658POSSIBLE MATCH
VALVE,GLOBE
803-2177525-S3A1AF
4820-01-554-1188POSSIBLE MATCH
VALVE,GLOBE
803-2177525-C5E1AF
Frequently Asked Questions
What is NSN 4820-01-120-0486?
NSN 4820-01-120-0486 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-120-0486?
9 possible matches (shared part number, not a government interchangeability claim): 4820-01-141-5053, 4820-01-142-1654, 4820-01-152-0135. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-120-0486?
Key specifications for 4820-01-120-0486: Furnished Items and Quantity: 1 DISK AND 1 WASHER AND 1 RING; Valve Type for Which Designed: GLOBE; Largest Outside Diameter: 0.875 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-120-0486 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.