PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WAV 870 ITEM A191Valve,check

Karl Senner, L.l.c. Dba Karl Senner Inc · NSN 4820-01-325-3783 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-325-3783 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-325-3783. Primary manufacturer part number: WAV 870 ITEM A191.
Features
  • Valve,check — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Karl Senner, L.l.c. Dba Karl Senner Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-325-3783, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Karl Senner, L.l.c. Dba Karl Senner Inc. 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.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersKarl Senner, L.l.c. Dba Karl Senner Inc (CAGE 68225)
Technical Specifications
ParameterValue
NSN4820-01-325-3783
Primary Part NumberWAV 870 ITEM A191
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKarl Senner, L.l.c. Dba Karl Senner Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-100-3539130504H INTERCHANGEABLE
Cone and Rollers,tapered Roller
Navistar Intl Corp Truck Br Ohio Plant
5330-00-215-5471 INTERCHANGEABLE
Seal,plain Encased
9905-01-538-1987 INTERCHANGEABLE
Plate,identification
Cross-Reference Index
Part NumberManufacturer
WAV 870 ITEM A191 PRIMARY Karl Senner, L.l.c. Dba Karl Senner Inc (USA)
25577 Karl Senner, L.l.c. Dba Karl Senner Inc (USA)
Related Parts
3110-00-100-3539INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
130504H
5330-00-215-5471INTERCHANGEABLE
SEAL,PLAIN ENCASED
9905-01-538-1987INTERCHANGEABLE
PLATE,IDENTIFICATION

Frequently Asked Questions

What is NSN 4820-01-325-3783?

NSN 4820-01-325-3783 is a Valve,check, manufactured by Karl Senner, L.l.c. Dba Karl Senner Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-325-3783?

NSN 4820-01-325-3783 has 2 cross-referenced part numbers: WAV 870 ITEM A191 (Karl Senner, L.l.c. Dba Karl Senner Inc), 25577 (Karl Senner, L.l.c. Dba Karl Senner Inc).

What NSN replaces 4820-01-325-3783?

There are 3 known substitutes for 4820-01-325-3783: 3110-00-100-3539, 5330-00-215-5471, 9905-01-538-1987. Verify interchangeability with system specifications before substitution.

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