Disk, Valve 4820-00-212-5271 NSN 4820-00-212-5271 · NIIN 002125271 · Part number 4DP2036APC4
The Walworth Company · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 63686
NSN 4820-00-212-5271 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-212-5271. Manufacturer of record part number: 4DP2036APC4 .
Also searched as
4820-00-212-5271 ·
4820002125271 ·
NIIN 002125271 ·
00-212-5271 ·
FSC 4820 Valves, Nonpowered · CAGE 63686 · 4DP2036APC4
Nearby stock numbers
← 4820-00-212-5262
·
4820-00-212-5272 →
4820-00-212-5271 — Valves, Nonpowered
Features
Disk,valve — FSC 4820 Outside Diameter: 1.397 INCHES NOMINAL IN Style Designator: PLUG Seat Angle: 78.0 DEGREES NOMINAL Nominal Thread Size: 1.125 INCHES IN Thread Class: 2B Thread Quantity Per Inch: 16 Material: NICKEL ALLOY
Identification
NSN: 4820-00-212-5271
NIIN: 002125271
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4DP2036APC4
Manufacturer: The Walworth Company
General Description
The Disk,valve, cataloged under National Stock Number 4820-00-212-5271, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. Government technical data includes 8 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. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4820-00-212-5271 Primary Part Number 4DP2036APC4 Item Name Disk,valve FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer The Walworth Company Status ACTIVE Outside Diameter 1.397 INCHES NOMINAL IN Style Designator PLUG Seat Angle 78.0 DEGREES NOMINAL Nominal Thread Size 1.125 INCHES IN Thread Class 2B Thread Quantity Per Inch 16 Material NICKEL ALLOY Thread Series Designator UN
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
Cross-Reference Index
Part Number Manufacturer
4DP2036APC4 PRIMARY The Walworth Company (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-00-212-5271?
NSN 4820-00-212-5271 is a Disk,valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-212-5271?
NSN 4820-00-212-5271 has 1 manufacturer part number on file: 4DP2036APC4 (The Walworth Company).
What are the specifications of 4DP2036APC4?
Key specifications for 4DP2036APC4: Overall Height: 0.875 INCHES NOMINAL IN; Outside Diameter: 1.397 INCHES NOMINAL IN; Style Designator: PLUG; Seat Angle: 78.0 DEGREES NOMINAL. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-212-5271 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.
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