NSN 4820-01-111-5867 · NIIN 011115867 · Part number 2620-925X2-1 1-2PIECE18
William Powell Company, the Dba Powell Valve Div the Starflo Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 48422
Government record, cited
NSN 4820-01-111-5867 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-111-5867. Manufacturer of record part number: 2620-925X2-1 1-2PIECE18.
Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF
Material Document and Classification: ASTM A276, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE
Material: STEEL COMP 316
1 manufacturer part number on file
Manufacturer of record: William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Identification
NSN: 4820-01-111-5867
NIIN: 011115867
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2620-925X2-1 1-2PIECE18
Manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-111-5867, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-111-5867
Primary Part Number
2620-925X2-1 1-2PIECE18
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
150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Temp Rating
500.0 FAHRENHEIT NOMINAL DEGF
Material Document and Classification
ASTM A276, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE
Material
STEEL COMP 316
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-115-6756E-26631 REV D T-316POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-118-80562620-925X2PIECE4 1-2INPOSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-132-91832620-925X2PIECE18 3-4INPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-133-02462620-925X2PIECE4 3-4INPOSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-236-27752620-925X2 ASSYA PIECE 8 1/2INPOSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-237-6471E33419POSSIBLE MATCH
DISK,VALVE
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
845-1889567PIECE18
5/2Secondary reference
U.S. Government activity
2620-925X2-1 1-2PIECE18
5/9Secondary reference
U.S. Government activity
2620-925X2
D/9Drawing number reference only
U.S. Government activity
845-1889567
D/9Drawing number reference only
U.S. Government activity
Related Parts
4820-01-115-6756POSSIBLE MATCH
STEM,FLUID VALVE
E-26631 REV D T-316
4820-01-118-8056POSSIBLE MATCH
STEM,FLUID VALVE
2620-925X2PIECE4 1-2IN
4820-01-132-9183POSSIBLE MATCH
DISK,VALVE
2620-925X2PIECE18 3-4IN
4820-01-133-0246POSSIBLE MATCH
STEM,FLUID VALVE
2620-925X2PIECE4 3-4IN
4820-01-236-2775POSSIBLE MATCH
CAP,VALVE
2620-925X2 ASSYA PIECE 8 1/2IN
4820-01-237-6471POSSIBLE MATCH
DISK,VALVE
E33419
Frequently Asked Questions
What is NSN 4820-01-111-5867?
NSN 4820-01-111-5867 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 4820-01-111-5867?
NSN 4820-01-111-5867 has 1 manufacturer part number on file: 2620-925X2-1 1-2PIECE18 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
What NSN replaces 4820-01-111-5867?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-115-6756, 4820-01-118-8056, 4820-01-132-9183. Verify interchangeability with system specifications before substitution.
What are the specifications of 2620-925X2-1 1-2PIECE18?
Key specifications for 2620-925X2-1 1-2PIECE18: Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: ASTM A276, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL COMP 316. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-111-5867 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.