PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4950O-Ring

Ellis Mfg Co Inc · NSN 5331-01-304-1149 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-304-1149 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-304-1149. Primary manufacturer part number: 4950.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Ellis Mfg Co Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-304-1149, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Ellis Mfg Co Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersEllis Mfg Co Inc (CAGE 7J529)
Technical Specifications
ParameterValue
NSN5331-01-304-1149
Primary Part Number4950
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerEllis Mfg Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2520-00-030-7205606503 INTERCHANGEABLE
Plunger
General Motors Corp
6210-00-299-2978 INTERCHANGEABLE
Reflector,light
5945-00-811-50400491-0004 INTERCHANGEABLE
Solenoid,electrical
Keysight Technologies Inc
5330-01-038-10894950 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
4920-01-075-3086GS15931-1 INTERCHANGEABLE
Fixture,engine Maintenance,aircr
Hamilton Sundstrand Corporation Dba Collins Aerospace
7035-01-114-3134 INTERCHANGEABLE
Programmer,electronic Command Si
5905-01-163-3932RCL25R INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
3020-01-225-70034950 INTERCHANGEABLE
Gear,spur
Pentair Filtration Solutions, Llc
4730-01-343-657749-50 INTERCHANGEABLE
Strainer,sediment
Lenz Inc Dba the Lenz Company
7510-01-358-87704950 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
3m Company
Cross-Reference Index
Part NumberManufacturer
4950 PRIMARY Ellis Mfg Co Inc (USA)
Related Parts
2520-00-030-7205INTERCHANGEABLE
PLUNGER
606503
6210-00-299-2978INTERCHANGEABLE
REFLECTOR,LIGHT
5945-00-811-5040INTERCHANGEABLE
SOLENOID,ELECTRICAL
0491-0004
5330-01-038-1089INTERCHANGEABLE
SEAL,PLAIN ENCASED
4950
4920-01-075-3086INTERCHANGEABLE
FIXTURE,ENGINE MAINTENANCE,AIRCR
GS15931-1
7035-01-114-3134INTERCHANGEABLE
PROGRAMMER,ELECTRONIC COMMAND SI
5905-01-163-3932INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
RCL25R
3020-01-225-7003INTERCHANGEABLE
GEAR,SPUR
4950
4730-01-343-6577INTERCHANGEABLE
STRAINER,SEDIMENT
49-50
7510-01-358-8770INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
4950
6625-01-380-6500INTERCHANGEABLE
METER,MULTIPLE SCALE
4950
5940-01-406-0544INTERCHANGEABLE
POST,BINDING,ELECTRICAL

Frequently Asked Questions

What is NSN 5331-01-304-1149?

NSN 5331-01-304-1149 is a O-Ring, manufactured by Ellis Mfg Co Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-304-1149?

NSN 5331-01-304-1149 has 1 cross-referenced part number: 4950 (Ellis Mfg Co Inc).

What NSN replaces 5331-01-304-1149?

There are 12 known substitutes for 5331-01-304-1149: 2520-00-030-7205, 6210-00-299-2978, 5945-00-811-5040 and 9 more. Verify interchangeability with system specifications before substitution.

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