PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20251-3-926SSValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-174-8993 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-174-8993 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-174-8993. Primary manufacturer part number: 20251-3-926SS.
Features
  • Valve,safety Relief — FSC 4820
  • 10 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-174-8993, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. This item has 10 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 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)
ManufacturersAnderson Greenwood Lp Dba Anderson Greenwood Crosby (CAGE 01343); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Danco Valve Company (CAGE 65079); Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187); Dante Valve Company (CAGE 5P967)
Technical Specifications
ParameterValue
NSN4820-01-174-8993
Primary Part Number20251-3-926SS
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-027-202520251 INTERCHANGEABLE
Pin,straight,headless
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5999-00-035-8709 INTERCHANGEABLE
Contact,electrical
5315-00-198-5967103574 INTERCHANGEABLE
Pin,tapered,plain
Us Army Aviation and Missile Command
5340-00-351-35922025-1 INTERCHANGEABLE
Clip,spring Tension
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5325-00-351-5220202037 INTERCHANGEABLE
Ring,retaining
Kidde-Fenwal, Llc
2995-00-724-0151 INTERCHANGEABLE
Pilot,valve
5305-00-864-5721 INTERCHANGEABLE
Setscrew
5360-01-007-839303187003211 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
8040-01-154-0038 INTERCHANGEABLE
Adhesive
5962-01-169-6663MC14025AL INTERCHANGEABLE
Microcircuit,digital
Freescale Semiconductor, Inc.
Cross-Reference Index
Part NumberManufacturer
20251-3-926SS Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
MIL-V-22549 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20251 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
D48DUU-02 3/4 X 1 Danco Valve Company (USA)
20251-3-926SS PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
D48DUU-02H-3/4-1 PRIMARY Dante Valve Company (USA)
D48DUU-02H-3/4-1 Danco Valve Company (USA)
A515-1-1 Rix Industries (USA)
D48UU-12-1-00 Danco Valve Company (USA)
D48UU-02 3/4 X 1 IN Danco Valve Company (USA)
Related Parts
5315-00-027-2025INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
20251
5999-00-035-8709INTERCHANGEABLE
CONTACT,ELECTRICAL
5315-00-198-5967INTERCHANGEABLE
PIN,TAPERED,PLAIN
103574
5340-00-351-3592INTERCHANGEABLE
CLIP,SPRING TENSION
2025-1
5325-00-351-5220INTERCHANGEABLE
RING,RETAINING
202037
2995-00-724-0151INTERCHANGEABLE
PILOT,VALVE
5305-00-864-5721INTERCHANGEABLE
SETSCREW
5360-01-007-8393INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
03187003211
8040-01-154-0038INTERCHANGEABLE
ADHESIVE
5962-01-169-6663INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MC14025AL
4820-01-187-1970INTERCHANGEABLE
VALVE,SAFETY RELIEF
20251-8-926SS
4820-01-193-3462INTERCHANGEABLE
RING,REGULATING,VALVE
20251 PIECE 5

Frequently Asked Questions

What is NSN 4820-01-174-8993?

NSN 4820-01-174-8993 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-174-8993?

NSN 4820-01-174-8993 has 10 cross-referenced part numbers: 20251-3-926SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), MIL-V-22549 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20251 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D48DUU-02 3/4 X 1 (Danco Valve Company), 20251-3-926SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 5 more.

What NSN replaces 4820-01-174-8993?

There are 12 known substitutes for 4820-01-174-8993: 5315-00-027-2025, 5999-00-035-8709, 5315-00-198-5967 and 9 more. Verify interchangeability with system specifications before substitution.

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