PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R10AL2L208 AND D50128Valve,safety Relief

Hunt Valve Company, Inc. · NSN 4820-01-180-0849 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-180-0849 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-180-0849. Primary manufacturer part number: R10AL2L208 AND D50128.
Features
  • Valve,safety Relief — FSC 4820
  • 6 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-180-0849, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,safety Relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHunt Valve Company Inc Dba Union Flonetics (CAGE 34889); Hunt Valve Company, Inc. (CAGE 11859); Danco Valve Company (CAGE 65079); Dante Valve Company (CAGE 5P967)
Technical Specifications
ParameterValue
NSN4820-01-180-0849
Primary Part NumberR10AL2L208 AND D50128
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4820-01-248-6252D50128 PART R10AL2L211 INTERCHANGEABLE
Valve,safety Relief
Hunt Valve Company, Inc.
4820-01-331-3609 INTERCHANGEABLE
Stem,fluid Valve
4820-01-344-5607D50FF-04-2 1/2IN INTERCHANGEABLE
Valve,safety Relief
Dante Valve Company
4820-01-345-4051D50-2 1/2-005 INTERCHANGEABLE
Disk,valve
Dante Valve Company
4820-01-354-2562R10AL2L204-BM1 INTERCHANGEABLE
Valve,safety Relief
Hunt Valve Company, Inc.
4820-01-406-6710B2024 INTERCHANGEABLE
Adjusting Screw,valve
Dante Valve Company
4820-01-423-3596BASHH09EKK INTERCHANGEABLE
Valve,safety Relief
Dante Valve Company
4820-01-440-4478R10AL2L206-BM1 INTERCHANGEABLE
Valve,safety Relief
Hunt Valve Company, Inc.
4820-01-718-8849C49525MBD INTERCHANGEABLE
Cap,valve
Hunt Valve Company, Inc.
4820-01-721-5924A49560MEA INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
D50128 Hunt Valve Company Inc Dba Union Flonetics (USA)
R10AL2L208 AND D50128 PRIMARY Hunt Valve Company, Inc. (USA)
D50FF-3-000 Danco Valve Company (USA)
R10AL2L208 AND D50128 Hunt Valve Company Inc Dba Union Flonetics (USA)
D50FF-04-3X3 Danco Valve Company (USA)
D50FF-04-3X3 PRIMARY Dante Valve Company (USA)
Related Parts
4820-01-248-6252INTERCHANGEABLE
VALVE,SAFETY RELIEF
D50128 PART R10AL2L211
4820-01-331-3609INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-344-5607INTERCHANGEABLE
VALVE,SAFETY RELIEF
D50FF-04-2 1/2IN
4820-01-345-4051INTERCHANGEABLE
DISK,VALVE
D50-2 1/2-005
4820-01-354-2562INTERCHANGEABLE
VALVE,SAFETY RELIEF
R10AL2L204-BM1
4820-01-406-6710INTERCHANGEABLE
ADJUSTING SCREW,VALVE
B2024
4820-01-423-3596INTERCHANGEABLE
VALVE,SAFETY RELIEF
BASHH09EKK
4820-01-440-4478INTERCHANGEABLE
VALVE,SAFETY RELIEF
R10AL2L206-BM1
4820-01-718-8849INTERCHANGEABLE
CAP,VALVE
C49525MBD
4820-01-721-5924INTERCHANGEABLE
STEM,FLUID VALVE
A49560MEA
5340-01-724-2799INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
C49527MBD

Frequently Asked Questions

What is NSN 4820-01-180-0849?

NSN 4820-01-180-0849 is a Valve,safety Relief, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-180-0849?

NSN 4820-01-180-0849 has 6 cross-referenced part numbers: D50128 (Hunt Valve Company Inc Dba Union Flonetics), R10AL2L208 AND D50128 (Hunt Valve Company, Inc.), D50FF-3-000 (Danco Valve Company), R10AL2L208 AND D50128 (Hunt Valve Company Inc Dba Union Flonetics), D50FF-04-3X3 (Danco Valve Company) and 1 more.

What NSN replaces 4820-01-180-0849?

There are 11 known substitutes for 4820-01-180-0849: 4820-01-248-6252, 4820-01-331-3609, 4820-01-344-5607 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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