PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

233101-0002Spring Assembly,valve

Marotta Controls Inc · NSN 4820-01-051-8465 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-051-8465 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-051-8465. Primary manufacturer part number: 233101-0002.
Features
  • Spring Assembly,valve — FSC 4820
  • General Characteristics Item Description: LENGTH 1.850 IN;125-150PSI CRACKING PRESSURE;MATERIAL STEEL;CORROSION STEEL IN
  • 6 verified cross-references
  • Primary manufacturer: Marotta Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical energy storage
  • Vibration dampening
General Description

The Spring Assembly,valve, cataloged under National Stock Number 4820-01-051-8465, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Marotta Controls Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-051-8465
Primary Part Number233101-0002
Item NameSpring Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMarotta Controls Inc
StatusACTIVE
General Characteristics Item DescriptionLENGTH 1.850 IN;125-150PSI CRACKING PRESSURE;MATERIAL STEEL;CORROSION STEEL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-158-5877466330 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
4820-01-051-8464233101-0003 INTERCHANGEABLE
Spring Assembly,valve
Marotta Controls Inc
5910-01-385-8679233101 INTERCHANGEABLE
Capacitor,fixed,glass Dielectric
Datron World Communications, Inc.
5895-01-627-53652331-01 INTERCHANGEABLE
Nrp,interconnecting
Csic Corporation
Cross-Reference Index
Part NumberManufacturer
233101 PART 233101-2 Marotta Controls Inc (USA)
233101 Marotta Controls Inc (USA)
4880102 Marotta Controls Inc (USA)
233101-0002 PRIMARY Marotta Controls Inc (USA)
233101-2 Marotta Controls Inc (USA)
D10102 ITEM 1 Marotta Controls Inc (USA)
Related Parts
3110-00-158-5877INTERCHANGEABLE
BEARING,BALL,ANNULAR
466330
4820-01-051-8464INTERCHANGEABLE
SPRING ASSEMBLY,VALVE
233101-0003
5910-01-385-8679INTERCHANGEABLE
CAPACITOR,FIXED,GLASS DIELECTRIC
233101
5895-01-627-5365INTERCHANGEABLE
NRP,INTERCONNECTING
2331-01

Frequently Asked Questions

What is NSN 4820-01-051-8465?

NSN 4820-01-051-8465 is a Spring Assembly,valve, manufactured by Marotta Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-051-8465?

NSN 4820-01-051-8465 has 6 cross-referenced part numbers: 233101 PART 233101-2 (Marotta Controls Inc), 233101 (Marotta Controls Inc), 4880102 (Marotta Controls Inc), 233101-0002 (Marotta Controls Inc), 233101-2 (Marotta Controls Inc) and 1 more.

What NSN replaces 4820-01-051-8465?

There are 4 known substitutes for 4820-01-051-8465: 3110-00-158-5877, 4820-01-051-8464, 5910-01-385-8679 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 233101-0002?

Key specifications for 233101-0002: General Characteristics Item Description: LENGTH 1.850 IN;125-150PSI CRACKING PRESSURE;MATERIAL STEEL;CORROSION STEEL IN. 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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