NSN 4820-01-058-7253 · NIIN 010587253 · Part number 2620-925X2 PIECE 24 1-2IN
William Powell Company, the Dba Powell Valve Div the Starflo Corporation · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 48422
Government record, cited
NSN 4820-01-058-7253 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-058-7253. Manufacturer of record part number: 2620-925X2 PIECE 24 1-2IN.
Manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation
General Description
The Flange,gland,valve, cataloged under National Stock Number 4820-01-058-7253, 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 9 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-058-7253
Primary Part Number
2620-925X2 PIECE 24 1-2IN
Item Name
Flange,gland,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Status
ACTIVE
Flange Shape
OVAL
Bolt Hole Nominal Diameter
0.285 INCHES IN
Valve Size
0.500 INCHES IN
Bolt Hole Quantity
2
Nominal Center Hole Diameter
0.531 INCHES IN
Valve Type
GLOBE
Flange Width
1.000 INCHES IN
Material
STEEL CORROSION RESISTING
Flange Length
2.390 INCHES IN
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 Items12
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
NSN 4820-01-058-7253 is a Flange,gland,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 4820-01-058-7253?
NSN 4820-01-058-7253 has 2 manufacturer part numbers on file: 2620-925X2 PIECE 24 1-2IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), SS845-1889567 PIECE 24 1-2IN (Naval Sea Systems Command).
What NSN replaces 4820-01-058-7253?
12 possible matches (shared part number, not a government interchangeability claim): 4820-01-058-7876, 4820-01-059-1308, 4820-01-063-4840. Verify interchangeability with system specifications before substitution.
What are the specifications of 2620-925X2 PIECE 24 1-2IN?
Key specifications for 2620-925X2 PIECE 24 1-2IN: Flange Shape: OVAL; Bolt Hole Nominal Diameter: 0.285 INCHES IN; Valve Size: 0.500 INCHES IN; Bolt Hole Quantity: 2. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-058-7253 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.