PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50420O-Ring

Mistral Inc · NSN 5331-01-687-9907 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-687-9907 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-687-9907. Primary manufacturer part number: 50420.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Mistral Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-687-9907, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Mistral Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersMistral Inc (CAGE 47176)
Technical Specifications
ParameterValue
NSN5331-01-687-9907
Primary Part Number50420
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMistral Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-227-287420NBK2040YZP INTERCHANGEABLE
Bearing,roller,needle
Anti-Friction Bearing Mfg Assn Inc the
4730-00-433-337555284 INTERCHANGEABLE
Sleeve,flared,tube Fitting
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4820-00-602-316250420 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
2930-00-905-59528420 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
3110-01-315-2031 INTERCHANGEABLE
Bearing,ball,annular
7021-01-392-6209 INTERCHANGEABLE
Computer,digital
Cross-Reference Index
Part NumberManufacturer
50420 PRIMARY Mistral Inc (USA)
Related Parts
3110-00-227-2874INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
20NBK2040YZP
4730-00-433-3375INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
55284
4820-00-602-3162INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
50420
2930-00-905-5952INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8420
3110-01-315-2031INTERCHANGEABLE
BEARING,BALL,ANNULAR
7021-01-392-6209INTERCHANGEABLE
COMPUTER,DIGITAL

Frequently Asked Questions

What is NSN 5331-01-687-9907?

NSN 5331-01-687-9907 is a O-Ring, manufactured by Mistral Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-687-9907?

NSN 5331-01-687-9907 has 1 cross-referenced part number: 50420 (Mistral Inc).

What NSN replaces 5331-01-687-9907?

There are 6 known substitutes for 5331-01-687-9907: 3110-00-227-2874, 4730-00-433-3375, 4820-00-602-3162 and 3 more. Verify interchangeability with system specifications before substitution.

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