PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51125O-Ring

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 5331-01-119-5807 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-119-5807 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-119-5807. Primary manufacturer part number: 51125.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.094 INCHES NOMINAL IN
  • Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OR RUBBER FLUOROCARBON CLASS FPM
  • 1 verified cross-reference
  • Primary manufacturer: Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Polymethylene-Perfluoroalkylene Class Fkm or Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-119-5807, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 2 verified specifications, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-119-5807
Primary Part Number51125
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
Cross-Sectional Height0.094 INCHES NOMINAL IN
MaterialRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OR RUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3030-00-133-3282511-0025 INTERCHANGEABLE
Belt,v
Cummins Power Generation Inc.
5331-00-444-0850 INTERCHANGEABLE
O-Ring
3120-00-508-9614BRE3340MILG3278 INTERCHANGEABLE
Bearing,plain,rod End
Rbc Southwest Products, Inc.
5950-00-789-754411031813-1 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
5340-01-589-944051125 INTERCHANGEABLE
Anode,corrosion Preventive
Fisheries Supply Co Div Fisheries Supply Company
Cross-Reference Index
Part NumberManufacturer
51125 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
3030-00-133-3282INTERCHANGEABLE
BELT,V
511-0025
5331-00-444-0850INTERCHANGEABLE
O-RING
3120-00-508-9614INTERCHANGEABLE
BEARING,PLAIN,ROD END
BRE3340MILG3278
5950-00-789-7544INTERCHANGEABLE
TRANSFORMER,POWER
11031813-1
5340-01-589-9440INTERCHANGEABLE
ANODE,CORROSION PREVENTIVE
51125

Frequently Asked Questions

What is NSN 5331-01-119-5807?

NSN 5331-01-119-5807 is a O-Ring, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-119-5807?

NSN 5331-01-119-5807 has 1 cross-referenced part number: 51125 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 5331-01-119-5807?

There are 5 known substitutes for 5331-01-119-5807: 3030-00-133-3282, 5331-00-444-0850, 3120-00-508-9614 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51125?

Key specifications for 51125: Cross-Sectional Height: 0.094 INCHES NOMINAL IN; Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OR RUBBER FLUOROCARBON CLASS FPM. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com