PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44458-7O-Ring

Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba · NSN 5331-01-594-4501 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-594-4501 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-594-4501. Primary manufacturer part number: 44458-7.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-594-4501, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersCurtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (CAGE 21439)
Technical Specifications
ParameterValue
NSN5331-01-594-4501
Primary Part Number44458-7
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCurtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-044-4587103868 INTERCHANGEABLE
Plug,pipe
Navistar Intl Corp Truck Br Ohio Plant
4730-01-389-3066444583 INTERCHANGEABLE
Oil Drain Plug
Liberty Ventures Inti, Llc
Cross-Reference Index
Part NumberManufacturer
44458-7 PRIMARY Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)
Related Parts
4730-00-044-4587INTERCHANGEABLE
PLUG,PIPE
103868
4730-01-389-3066INTERCHANGEABLE
OIL DRAIN PLUG
444583

Frequently Asked Questions

What is NSN 5331-01-594-4501?

NSN 5331-01-594-4501 is a O-Ring, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-594-4501?

NSN 5331-01-594-4501 has 1 cross-referenced part number: 44458-7 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).

What NSN replaces 5331-01-594-4501?

There are 2 known substitutes for 5331-01-594-4501: 4730-00-044-4587, 4730-01-389-3066. Verify interchangeability with system specifications before substitution.

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