Also searched as4820-01-478-4527 ·
4820014784527 ·
NIIN 014784527 ·
01-478-4527 ·
FSC 4820 Valves, Nonpowered · 8831-B · 2352-1181ACL
Nearby stock numbers← 4820-01-478-4523 Parts Kit, Regulating Valve, Tempe
·
4820-01-478-4566 Slide, Directional Control Linear →
4820-01-478-4527 — Valves, Nonpowered
Features
Valve,calibrated Flow — FSC 4820
Flow Control Device: DIAPHRAGM
Renewable Seat Ring Type: RETAINING RING
Second End Relationship with First End: IDENTICAL
Body Style: STRAIGHT THRU
First End Style Designator: SWIVEL NUT, FLARE
Temp Rating: 160.0 FAHRENHEIT NOMINAL DEGF
End Connection Quantity: 2
Identification
NSN: 4820-01-478-4527
NIIN: 014784527
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-478-4527, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-478-4527
Item Name
Valve,calibrated Flow
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Flow Control Device
DIAPHRAGM
Renewable Seat Ring Type
RETAINING RING
Second End Relationship with First End
IDENTICAL
Body Style
STRAIGHT THRU
First End Style Designator
SWIVEL NUT, FLARE
Temp Rating
160.0 FAHRENHEIT NOMINAL DEGF
End Connection Quantity
2
First End Connection Type
UNTHREADED INTERNAL PIPE
First End Nominal Pipe Size Accommodated
1.000 INCHES IN
Material
COPPER ALLOY BODY
Material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Media for Which Designed
WATER
Maximum Inlet Pressure Rating
ERR-060
Furnished Items
INLET ADAPTER AND TAILPIECE
Valve Discharge Flow Rate
9.0 GALLONS PER MINUTE
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.
4820-01-483-60112352-1261ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-483-64425873-10SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-493-89552352-1251ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-493-90735873-9SKPOSSIBLE MATCH
PARTS KIT,VALVE
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
4820-01-579-76502352-1201ACLPOSSIBLE MATCH
VALVE,CALIBRATED FLOW
Possible match (shared part number)Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
8831-B
D/9Drawing number reference only
U.S. Government activity
2352-1181ACL
3/2Design control — primary reference
U.S. Government activity
Related Parts
4820-01-483-6011POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1261ACL
4820-01-483-6442POSSIBLE MATCH
PARTS KIT,VALVE
5873-10SK
4820-01-493-8955POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1251ACL
4820-01-493-9073POSSIBLE MATCH
PARTS KIT,VALVE
5873-9SK
4820-01-579-7650POSSIBLE MATCH
VALVE,CALIBRATED FLOW
2352-1201ACL
Frequently Asked Questions
What is NSN 4820-01-478-4527?
NSN 4820-01-478-4527 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-478-4527?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-483-6011, 4820-01-483-6442, 4820-01-493-8955. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-478-4527?
Key specifications for 4820-01-478-4527: Flow Control Device: DIAPHRAGM; Renewable Seat Ring Type: RETAINING RING; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 15 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-478-4527 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.