PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20128Disk,valve

Stanadyne Corporation Dba Stanadyne Diesel Systems · NSN 4820-01-333-0260 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-333-0260 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-333-0260. Primary manufacturer part number: 20128.
Features
  • Disk,valve — FSC 4820
  • Style Designator: POPPET
  • 1 verified cross-reference
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-333-0260, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-333-0260
Primary Part Number20128
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems
StatusACTIVE
Style DesignatorPOPPET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4310-00-097-0941 INTERCHANGEABLE
Head
5310-00-173-011720-128 INTERCHANGEABLE
Nut,self-Locking,single Ball Sea
Motorola Automotive Electronics
5133-00-228-1377 INTERCHANGEABLE
Drill,twist
5930-00-263-6957S228-1028ISSUE3 INTERCHANGEABLE
Switch,sensitive
Raytheon Company Dba Raytheon Co
5360-01-076-286720-128 INTERCHANGEABLE
Spring
Stewart & Stevenson Power Products Llc
4820-01-202-960920128 INTERCHANGEABLE
Stop,valve,delivery
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5995-01-220-5602 INTERCHANGEABLE
Lead,electrical
4920-01-300-1917 INTERCHANGEABLE
Test Program Set
3040-01-525-636720128 INTERCHANGEABLE
Spindle,mechanically Actuated
B.w. Elliott Manufacturing Co., Llc
2090-01-564-0038201-28 INTERCHANGEABLE
Bladder,accumulator,hydraulic
Blacoh Fluid Controls Inc
Cross-Reference Index
Part NumberManufacturer
20128 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems (USA)
Related Parts
4310-00-097-0941INTERCHANGEABLE
HEAD
5310-00-173-0117INTERCHANGEABLE
NUT,SELF-LOCKING,SINGLE BALL SEA
20-128
5133-00-228-1377INTERCHANGEABLE
DRILL,TWIST
5930-00-263-6957INTERCHANGEABLE
SWITCH,SENSITIVE
S228-1028ISSUE3
5360-01-076-2867INTERCHANGEABLE
SPRING
20-128
4820-01-202-9609INTERCHANGEABLE
STOP,VALVE,DELIVERY
20128
5995-01-220-5602INTERCHANGEABLE
LEAD,ELECTRICAL
4920-01-300-1917INTERCHANGEABLE
TEST PROGRAM SET
3040-01-525-6367INTERCHANGEABLE
SPINDLE,MECHANICALLY ACTUATED
20128
2090-01-564-0038INTERCHANGEABLE
BLADDER,ACCUMULATOR,HYDRAULIC
201-28
6695-01-732-6641INTERCHANGEABLE
TRANSDUCER,PRESSURE,FLUID-HYDRAU
20128

Frequently Asked Questions

What is NSN 4820-01-333-0260?

NSN 4820-01-333-0260 is a Disk,valve, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-333-0260?

NSN 4820-01-333-0260 has 1 cross-referenced part number: 20128 (Stanadyne Corporation Dba Stanadyne Diesel Systems).

What NSN replaces 4820-01-333-0260?

There are 11 known substitutes for 4820-01-333-0260: 4310-00-097-0941, 5310-00-173-0117, 5133-00-228-1377 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20128?

Key specifications for 20128: Style Designator: POPPET. 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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