PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

845-1889557ASSYG4IN PIECE 15Gland,valve

The Walworth Company · NSN 4820-01-211-8535 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-211-8535 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-211-8535. Primary manufacturer part number: 845-1889557ASSYG4IN PIECE 15.
Features
  • Gland,valve — FSC 4820
  • General Characteristics Item Description: CRES ASTM A-182 GR.F6 MOD
  • 3 verified cross-references
  • Primary manufacturer: The Walworth Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Gland,valve, cataloged under National Stock Number 4820-01-211-8535, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-211-8535
Primary Part Number845-1889557ASSYG4IN PIECE 15
Item NameGland,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerThe Walworth Company
StatusACTIVE
General Characteristics Item DescriptionCRES ASTM A-182 GR.F6 MOD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-118-2843SS845-1889557ASSYAS3IN PIECE 69 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
845-1889557ASSYG4IN PIECE 15 PRIMARY The Walworth Company (USA)
2620-922X4ASSYG4IN PIECE 15 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
845-1889557 The Walworth Company (USA)
Related Parts
4820-01-118-2843INTERCHANGEABLE
DISK,VALVE
SS845-1889557ASSYAS3IN PIECE 69

Frequently Asked Questions

What is NSN 4820-01-211-8535?

NSN 4820-01-211-8535 is a Gland,valve, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-211-8535?

NSN 4820-01-211-8535 has 3 cross-referenced part numbers: 845-1889557ASSYG4IN PIECE 15 (The Walworth Company), 2620-922X4ASSYG4IN PIECE 15 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-1889557 (The Walworth Company).

What NSN replaces 4820-01-211-8535?

There is 1 known substitute for 4820-01-211-8535: 4820-01-118-2843. Verify interchangeability with system specifications before substitution.

What are the specifications of 845-1889557ASSYG4IN PIECE 15?

Key specifications for 845-1889557ASSYG4IN PIECE 15: General Characteristics Item Description: CRES ASTM A-182 GR.F6 MOD. 1 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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