PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SS845-1889557ASSYGSC3INPIECE74Stem,fluid Valve

Naval Ship Systems Command · NSN 4820-01-110-1270 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-110-1270 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-110-1270. Primary manufacturer part number: SS845-1889557ASSYGSC3INPIECE74.
Features
  • Stem,fluid Valve — FSC 4820
  • Material: STEEL CORROSION RESISTING
  • Largest Outside Diameter: 1.250 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-110-1270, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-110-1270
Primary Part NumberSS845-1889557ASSYGSC3INPIECE74
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Largest Outside Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-118-2843SS845-1889557ASSYAS3IN PIECE 69 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
4820-01-133-77552620-922X4ASSYGS3INPIECE44 INTERCHANGEABLE
Stem,fluid Valve
Electric Boat Corporation Div General Dynamics Electric Boat
5330-01-228-95480633002 INTERCHANGEABLE
Retainer,packing
The Walworth Company
Cross-Reference Index
Part NumberManufacturer
SS845-1889557ASSYGSC3INPIECE74 PRIMARY Naval Ship Systems Command (USA)
SS845-1889557 Naval Ship Systems Command (USA)
Related Parts
4820-01-118-2843INTERCHANGEABLE
DISK,VALVE
SS845-1889557ASSYAS3IN PIECE 69
4820-01-133-7755INTERCHANGEABLE
STEM,FLUID VALVE
2620-922X4ASSYGS3INPIECE44
5330-01-228-9548INTERCHANGEABLE
RETAINER,PACKING
0633002

Frequently Asked Questions

What is NSN 4820-01-110-1270?

NSN 4820-01-110-1270 is a Stem,fluid Valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-110-1270?

NSN 4820-01-110-1270 has 2 cross-referenced part numbers: SS845-1889557ASSYGSC3INPIECE74 (Naval Ship Systems Command), SS845-1889557 (Naval Ship Systems Command).

What NSN replaces 4820-01-110-1270?

There are 3 known substitutes for 4820-01-110-1270: 4820-01-118-2843, 4820-01-133-7755, 5330-01-228-9548. Verify interchangeability with system specifications before substitution.

What are the specifications of SS845-1889557ASSYGSC3INPIECE74?

Key specifications for SS845-1889557ASSYGSC3INPIECE74: Material: STEEL CORROSION RESISTING; Overall Length: 17.000 INCHES NOMINAL IN; Largest Outside Diameter: 1.250 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.

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