Valve, Restrictor Check 4820-01-239-1089 NSN 4820-01-239-1089 · NIIN 012391089 · Part number 202516-D
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 61208
NSN 4820-01-239-1089 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-239-1089. Manufacturer of record part number: 202516-D .
Also searched as
4820-01-239-1089 ·
4820012391089 ·
NIIN 012391089 ·
01-239-1089 ·
FSC 4820 Valves, Nonpowered · CAGE 61208 · 202516-D · 202516D · 202516D
Nearby stock numbers
← 4820-01-239-0877
·
4820-01-239-1156 →
4820-01-239-1089 — Valves, Nonpowered
Features
Valve,restrictor Check — FSC 4820 2 manufacturer part numbers on file Manufacturer of record: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Identification
NSN: 4820-01-239-1089
NIIN: 012391089
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 202516-D
Manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
General Description
The Valve,restrictor Check, cataloged under National Stock Number 4820-01-239-1089, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name Valve,restrictor Check FSC / FSG 4820 — Valves, Nonpowered (FSG 48) Manufacturers Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208); Marine & Industrial Transmissions Ltd (CAGE U2621)
Technical Specifications
Parameter Value NSN 4820-01-239-1089 Primary Part Number 202516-D Item Name Valve,restrictor Check FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic Status ACTIVE
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
202516-D PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
202516D Marine & Industrial Transmissions Ltd (GBR)
Reference documents
Reference Meaning
202516D
5/9 Secondary reference Twin Disc International S a
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 4820-01-239-1089?
NSN 4820-01-239-1089 is a Valve,restrictor Check, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-239-1089?
NSN 4820-01-239-1089 has 2 manufacturer part numbers on file: 202516-D (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 202516D (Marine & Industrial Transmissions Ltd).
Is NSN 4820-01-239-1089 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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