Valve, Safety Relief 4820-01-186-0540 NSN 4820-01-186-0540 · NIIN 011860540 · Part number 241-7777
Meggitt Troy Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 78385
NSN 4820-01-186-0540 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-186-0540. Manufacturer of record part number: 241-7777 .
Also searched as
4820-01-186-0540 ·
4820011860540 ·
NIIN 011860540 ·
01-186-0540 ·
FSC 4820 Valves, Nonpowered · CAGE 78385 · 241-7777 · A-30642
Nearby stock numbers
← 4820-01-186-0539 Valve, Check
·
4820-01-186-0541 →
4820-01-186-0540 — Valves, Nonpowered
Features
Valve,safety Relief — FSC 4820 2 manufacturer part numbers on file Manufacturer of record: Meggitt Troy Inc
Identification
NSN: 4820-01-186-0540
NIIN: 011860540
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 241-7777
Manufacturer: Meggitt Troy Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-186-0540, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Meggitt Troy Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name Valve,safety Relief FSC / FSG 4820 — Valves, Nonpowered (FSG 48) Manufacturers Terex Reedrill Dba Reedrill Texoma Div Terex Mining (CAGE 03476); Meggitt Troy Inc (CAGE 78385)
Technical Specifications
Parameter Value NSN 4820-01-186-0540 Primary Part Number 241-7777 Item Name Valve,safety Relief FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Meggitt Troy Inc 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
A-30642 Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA)
241-7777 PRIMARY Meggitt Troy Inc (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 4820-01-186-0540?
NSN 4820-01-186-0540 is a Valve,safety Relief, manufactured by Meggitt Troy Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-186-0540?
NSN 4820-01-186-0540 has 2 manufacturer part numbers on file: A-30642 (Terex Reedrill Dba Reedrill Texoma Div Terex Mining), 241-7777 (Meggitt Troy Inc).
Is NSN 4820-01-186-0540 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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