PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5236O-Ring

Modern Engineering Co Inc · NSN 5331-01-249-8550 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-249-8550 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-249-8550. Primary manufacturer part number: 5236.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Modern Engineering Co Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-249-8550, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Modern Engineering 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)
ManufacturersModern Engineering Co Inc (CAGE 41140)
Technical Specifications
ParameterValue
NSN5331-01-249-8550
Primary Part Number5236
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerModern Engineering Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-156-7196MS77072-2 INTERCHANGEABLE
Terminal,lug
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4730-00-278-2513 INTERCHANGEABLE
Clamp,hose
4730-00-358-59655236 INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
2990-00-416-8726P119 INTERCHANGEABLE
Shaft
Sterling Engine Co Inc
5935-00-723-68105236 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5330-00-733-78304H8999 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
5330-00-918-8779 INTERCHANGEABLE
Seal,cylinder End C
5910-01-042-72395236 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Hoyt Corporation
5975-01-339-59485236 INTERCHANGEABLE
Box Connector,electrical
T and B/valcon Sub of Thomas and Betts Corp
8415-01-508-83575236 INTERCHANGEABLE
Apron,utility
Accent Apparel Co Inc Div Military Sales
Cross-Reference Index
Part NumberManufacturer
5236 Modern Engineering Co Inc (USA)
Related Parts
5940-00-156-7196INTERCHANGEABLE
TERMINAL,LUG
MS77072-2
4730-00-278-2513INTERCHANGEABLE
CLAMP,HOSE
4730-00-358-5965INTERCHANGEABLE
CLAMP,HOSE
5236
2990-00-416-8726INTERCHANGEABLE
SHAFT
P119
5935-00-723-6810INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5236
5330-00-733-7830INTERCHANGEABLE
GASKET
4H8999
5330-00-918-8779INTERCHANGEABLE
SEAL,CYLINDER END C
5910-01-042-7239INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5236
5975-01-339-5948INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5236
8415-01-508-8357INTERCHANGEABLE
APRON,UTILITY
5236
4820-01-523-7461INTERCHANGEABLE
VALVE,CHECK
5236
4310-01-581-7752INTERCHANGEABLE
COMPRESSOR,ROTARY
5236

Frequently Asked Questions

What is NSN 5331-01-249-8550?

NSN 5331-01-249-8550 is a O-Ring, manufactured by Modern Engineering Co Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-249-8550?

NSN 5331-01-249-8550 has 1 cross-referenced part number: 5236 (Modern Engineering Co Inc).

What NSN replaces 5331-01-249-8550?

There are 12 known substitutes for 5331-01-249-8550: 5940-00-156-7196, 4730-00-278-2513, 4730-00-358-5965 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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