PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

509O-Ring

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5331-00-641-8286 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-641-8286 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-641-8286. Primary manufacturer part number: 509.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • 8 verified cross-references
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-641-8286, 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. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-641-8286
Primary Part Number509
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
MaterialRUBBER SYNTHETIC
Center Hole Diameter0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-050-0148 INTERCHANGEABLE
Seal,plain Encased
1630-00-077-195840-50910 INTERCHANGEABLE
Drive Assembly,dete
Hydro-Aire Aerospace Corp
3040-00-327-5143SM-C-186954 INTERCHANGEABLE
Shaft,shouldered
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1005-00-630-385211588 INTERCHANGEABLE
Nut,adjusting
Nobles Worldwide, Inc.
2520-00-679-73221752307 INTERCHANGEABLE
Parts Kit,universal Joint
Chrysler Realty Company Llc Dba Daimler Chrysler
6130-00-857-911611588 INTERCHANGEABLE
Power Supply
Sure Power, Inc
2520-00-862-709020057 INTERCHANGEABLE
Parts Kit,universal Joint
Trw Inc Trw Intl Trade Government Sales Dept
4920-01-036-3805 INTERCHANGEABLE
Shaft,pinion
5962-01-067-9523MM54C00J/883 INTERCHANGEABLE
Microcircuit,digital
Teledyne Defense Electronics, Llc Dba Teledyne E2v Hirel Electronics
5310-01-333-281711588 INTERCHANGEABLE
Washer,seal
Stanadyne Corporation Dba Stanadyne Diesel Systems
Cross-Reference Index
Part NumberManufacturer
11588 Lockwood Corp (USA)
R15699 Cnh Industrial America Llc Dba Cnh America (USA)
509 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
11588 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
4050910 Minnpar, Llc Dba Minnpar (USA)
P-192543A Wiggins Lift Co Inc (USA)
P-192543 Wiggins Lift Co Inc (USA)
4050910 Barber-Greene Co (USA)
Related Parts
5330-00-050-0148INTERCHANGEABLE
SEAL,PLAIN ENCASED
1630-00-077-1958INTERCHANGEABLE
DRIVE ASSEMBLY,DETE
40-50910
3040-00-327-5143INTERCHANGEABLE
SHAFT,SHOULDERED
SM-C-186954
1005-00-630-3852INTERCHANGEABLE
NUT,ADJUSTING
11588
2520-00-679-7322INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
1752307
6130-00-857-9116INTERCHANGEABLE
POWER SUPPLY
11588
2520-00-862-7090INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
20057
4920-01-036-3805INTERCHANGEABLE
SHAFT,PINION
5962-01-067-9523INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MM54C00J/883
5310-01-333-2817INTERCHANGEABLE
WASHER,SEAL
11588
5306-01-386-5356INTERCHANGEABLE
BOLT,MACHINE
11588
5310-01-602-0109INTERCHANGEABLE
NUT,SELF-LOCKING,PLATE
11-588

Frequently Asked Questions

What is NSN 5331-00-641-8286?

NSN 5331-00-641-8286 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 5331-00-641-8286?

NSN 5331-00-641-8286 has 8 cross-referenced part numbers: 11588 (Lockwood Corp), R15699 (Cnh Industrial America Llc Dba Cnh America), 509 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 11588 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 4050910 (Minnpar, Llc Dba Minnpar) and 3 more.

What NSN replaces 5331-00-641-8286?

There are 12 known substitutes for 5331-00-641-8286: 5330-00-050-0148, 1630-00-077-1958, 3040-00-327-5143 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 509?

Key specifications for 509: Material: RUBBER SYNTHETIC; Center Hole Diameter: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. 3 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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