PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19840O-Ring

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5331-01-212-4429 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-212-4429 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-212-4429. Primary manufacturer part number: 19840.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-212-4429, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (CAGE 84760)
Technical Specifications
ParameterValue
NSN5331-01-212-4429
Primary Part Number19840
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-203-1111190362 INTERCHANGEABLE
Washer,flat
Eaton Aerospace, Llc Dba Jackson South
3455-00-232-418219840 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
2530-00-469-7847 INTERCHANGEABLE
Tank,pressure
5950-00-752-2508PP2792ARN30D INTERCHANGEABLE
Transformer,power
Joint Electronics Type Designation System
6105-00-899-342419840 INTERCHANGEABLE
Motor,alternating Current
Ward Leonard Ct Llc
4820-01-261-1082F-46770 PIECE 11 INTERCHANGEABLE
Stem,fluid Valve
Flowserve Inc
4310-01-315-506819840 INTERCHANGEABLE
Tank,pressure
Isometrics Inc
Cross-Reference Index
Part NumberManufacturer
19840 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
Related Parts
5310-00-203-1111INTERCHANGEABLE
WASHER,FLAT
190362
3455-00-232-4182INTERCHANGEABLE
REAMER,MACHINE
19840
2530-00-469-7847INTERCHANGEABLE
TANK,PRESSURE
5950-00-752-2508INTERCHANGEABLE
TRANSFORMER,POWER
PP2792ARN30D
6105-00-899-3424INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
19840
4820-01-261-1082INTERCHANGEABLE
STEM,FLUID VALVE
F-46770 PIECE 11
4310-01-315-5068INTERCHANGEABLE
TANK,PRESSURE
19840

Frequently Asked Questions

What is NSN 5331-01-212-4429?

NSN 5331-01-212-4429 is a O-Ring, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-212-4429?

NSN 5331-01-212-4429 has 1 cross-referenced part number: 19840 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems).

What NSN replaces 5331-01-212-4429?

There are 7 known substitutes for 5331-01-212-4429: 5310-00-203-1111, 3455-00-232-4182, 2530-00-469-7847 and 4 more. Verify interchangeability with system specifications before substitution.

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