NSN 4820-01-443-5045 · NIIN 014435045 · Part number 1861 SWE 1/4 PART 13
William Powell Company, the Dba Powell Valve Div the Starflo Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 48422
Government record, cited
NSN 4820-01-443-5045 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-443-5045. Manufacturer of record part number: 1861 SWE 1/4 PART 13.
Also searched as4820-01-443-5045 ·
4820014435045 ·
NIIN 014435045 ·
01-443-5045 ·
FSC 4820 Valves, Nonpowered · CAGE 48422 · 1861 SWE 1/4 PART 13 · 63502-B · 63502-B 1861 SWE 1/4 PART 13
Pressure Rating: 200.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Temp Rating: 500.0 FAHRENHEIT MAXIMUM DEGF
Media for Which Designed: STEAM OR WATER OR OIL OR GAS
Material: STEEL CORROSION RESISTING
1 manufacturer part number on file
Manufacturer of record: William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Identification
NSN: 4820-01-443-5045
NIIN: 014435045
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1861 SWE 1/4 PART 13
Manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-443-5045, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-443-5045
Primary Part Number
1861 SWE 1/4 PART 13
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Status
ACTIVE
Pressure Rating
200.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Temp Rating
500.0 FAHRENHEIT MAXIMUM DEGF
Media for Which Designed
STEAM OR WATER OR OIL OR GAS
Material
STEEL CORROSION RESISTING
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-443-50571861 SWE 1/4INCHPOSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-447-777063502-B 1861 SWE 1/2 PART 9POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-447-778263502-B 1861 SWE 1/2 PART 4POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-447-798463502-B 1861 SWE 1/2 PART 13POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4730-01-448-884863502-B 1861 SWE 1/2 PART 10POSSIBLE MATCH
LOCKNUT,PIPE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
Reference documents
Reference
Meaning
63502-B
D/9Drawing number reference only
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
63502-B 1861 SWE 1/4 PART 13
5/9Secondary reference
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
1861 SWE 1/4 PART 13
5/9Secondary reference
Mutual Mfg and Supply Co
Related Parts
4820-01-443-5057POSSIBLE MATCH
VALVE,GLOBE
1861 SWE 1/4INCH
4820-01-447-7770POSSIBLE MATCH
CAP,VALVE
63502-B 1861 SWE 1/2 PART 9
4820-01-447-7782POSSIBLE MATCH
STEM,FLUID VALVE
63502-B 1861 SWE 1/2 PART 4
4820-01-447-7984POSSIBLE MATCH
DISK,VALVE
63502-B 1861 SWE 1/2 PART 13
4730-01-448-8848POSSIBLE MATCH
LOCKNUT,PIPE
63502-B 1861 SWE 1/2 PART 10
Frequently Asked Questions
What is NSN 4820-01-443-5045?
NSN 4820-01-443-5045 is a Disk,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-443-5045?
NSN 4820-01-443-5045 has 1 manufacturer part number on file: 1861 SWE 1/4 PART 13 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
What NSN replaces 4820-01-443-5045?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-443-5057, 4820-01-447-7770, 4820-01-447-7782. Verify interchangeability with system specifications before substitution.
What are the specifications of 1861 SWE 1/4 PART 13?
Key specifications for 1861 SWE 1/4 PART 13: Pressure Rating: 200.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Temp Rating: 500.0 FAHRENHEIT MAXIMUM DEGF; Media for Which Designed: STEAM OR WATER OR OIL OR GAS; End Item Identification: WIDBEY ISLAND CLASS LSD. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-443-5045 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.