PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9914933O-Ring

Alfa Laval Inc · NSN 5331-00-291-3368 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-291-3368 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-291-3368. Primary manufacturer part number: 9914933.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Center Hole Diameter: 7.556 INCHES MINIMUM AND 7.616 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.197 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
  • Elongation Percentage: 300 MAXIMUM
  • 4 verified cross-references
  • Primary manufacturer: Alfa Laval Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-291-3368, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Alfa Laval Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-291-3368
Primary Part Number9914933
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAlfa Laval Inc
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Center Hole Diameter7.556 INCHES MINIMUM AND 7.616 INCHES MAXIMUM IN
Cross-Sectional Height0.197 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
Elongation Percentage300 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5945-00-057-2401 INTERCHANGEABLE
Relay,penn
5360-00-699-899037701 INTERCHANGEABLE
Spring,helical,torsion
Borgwarner Pds (anderson), L.l.c.
4810-00-725-9458493-3 INTERCHANGEABLE
Valve,solenoid
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4720-01-017-26464933 INTERCHANGEABLE
Hose,nonmetallic
Pentair Filtration Solutions, Llc
5915-01-029-3738 INTERCHANGEABLE
Filter,low Pass
5365-01-305-65324933-35072 INTERCHANGEABLE
Plug,machine Thread
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
5950-01-316-672277C721935P001 INTERCHANGEABLE
Transformer,audio Frequency
Lockheed Martin Corporation Div Rms
3040-01-498-42474933 INTERCHANGEABLE
Shaft,straight
Amw Cuyuna Engine Co. Inc Dba Two Stroke International
6515-01-556-0111 INTERCHANGEABLE
Endoscopic Instrument,fiber Opti
1240-01-575-95184933 INTERCHANGEABLE
Sight,bore,optical
Plx Inc. Dba Plx Inc
Cross-Reference Index
Part NumberManufacturer
9914933 PRIMARY Alfa Laval Inc (USA)
MIL-R-2765 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4933 Alfa Laval Inc (USA)
5330-223-19 General Stores Supply Office (USA)
Related Parts
5945-00-057-2401INTERCHANGEABLE
RELAY,PENN
5360-00-699-8990INTERCHANGEABLE
SPRING,HELICAL,TORSION
37701
4810-00-725-9458INTERCHANGEABLE
VALVE,SOLENOID
493-3
4720-01-017-2646INTERCHANGEABLE
HOSE,NONMETALLIC
4933
5915-01-029-3738INTERCHANGEABLE
FILTER,LOW PASS
5365-01-305-6532INTERCHANGEABLE
PLUG,MACHINE THREAD
4933-35072
5950-01-316-6722INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
77C721935P001
3040-01-498-4247INTERCHANGEABLE
SHAFT,STRAIGHT
4933
6515-01-556-0111INTERCHANGEABLE
ENDOSCOPIC INSTRUMENT,FIBER OPTI
1240-01-575-9518INTERCHANGEABLE
SIGHT,BORE,OPTICAL
4933

Frequently Asked Questions

What is NSN 5331-00-291-3368?

NSN 5331-00-291-3368 is a O-Ring, manufactured by Alfa Laval Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-291-3368?

NSN 5331-00-291-3368 has 4 cross-referenced part numbers: 9914933 (Alfa Laval Inc), MIL-R-2765 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4933 (Alfa Laval Inc), 5330-223-19 (General Stores Supply Office).

What NSN replaces 5331-00-291-3368?

There are 10 known substitutes for 5331-00-291-3368: 5945-00-057-2401, 5360-00-699-8990, 4810-00-725-9458 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9914933?

Key specifications for 9914933: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Center Hole Diameter: 7.556 INCHES MINIMUM AND 7.616 INCHES MAXIMUM IN; Cross-Sectional Height: 0.197 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN; Elongation Percentage: 300 MAXIMUM. 4 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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