PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

581R130H18O-Ring

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5331-01-044-1604 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-044-1604 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-044-1604. Primary manufacturer part number: 581R130H18.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SILICONE CLASS Q
  • Center Hole Diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Class Q construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-044-1604, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-044-1604
Primary Part Number581R130H18
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
MaterialRUBBER SILICONE CLASS Q
Center Hole Diameter0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-287-333259066D104-19 INTERCHANGEABLE
Valve,globe
Chief of Engineers Dept of Army
3120-00-363-762314U1015PCDA6234 INTERCHANGEABLE
Bearing,sleeve
Naval Ship Systems Command
5950-00-645-6450 INTERCHANGEABLE
Coil Assembly,radio Frequency
4730-00-813-7344601A3-4 INTERCHANGEABLE
Trap,steam
Itt Fluid Technology Corp Itt Mcdonnell and Miller
4510-01-037-9187 INTERCHANGEABLE
Tailpiece,waste Drain
2540-01-156-9740918656 INTERCHANGEABLE
Mirror Assembly,rearview
General Motors Llc Dba General Motors Llc
4330-01-228-4355 INTERCHANGEABLE
Filter,fluid
3110-01-297-4733 INTERCHANGEABLE
Bearing,roller,needle
7025-01-362-55326234 INTERCHANGEABLE
Disk Drive Unit
Data General Corporation
5130-01-397-96636236 INTERCHANGEABLE
Saw,band,electric,portable
Milwaukee Electric Tool Corp Dba Milwaukee Electric Tools
Cross-Reference Index
Part NumberManufacturer
6234 Jonal Laboratories Inc (USA)
581R130H18 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
4820-00-287-3332INTERCHANGEABLE
VALVE,GLOBE
59066D104-19
3120-00-363-7623INTERCHANGEABLE
BEARING,SLEEVE
14U1015PCDA6234
5950-00-645-6450INTERCHANGEABLE
COIL ASSEMBLY,RADIO FREQUENCY
4730-00-813-7344INTERCHANGEABLE
TRAP,STEAM
601A3-4
4510-01-037-9187INTERCHANGEABLE
TAILPIECE,WASTE DRAIN
2540-01-156-9740INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
918656
4330-01-228-4355INTERCHANGEABLE
FILTER,FLUID
3110-01-297-4733INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
7025-01-362-5532INTERCHANGEABLE
DISK DRIVE UNIT
6234
5130-01-397-9663INTERCHANGEABLE
SAW,BAND,ELECTRIC,PORTABLE
6236
4820-01-441-5814INTERCHANGEABLE
VALVE,CHECK
5985-01-504-5794INTERCHANGEABLE
SEAL,WAVEGUIDE
H00637-000

Frequently Asked Questions

What is NSN 5331-01-044-1604?

NSN 5331-01-044-1604 is a O-Ring, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-044-1604?

NSN 5331-01-044-1604 has 2 cross-referenced part numbers: 6234 (Jonal Laboratories Inc), 581R130H18 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5331-01-044-1604?

There are 12 known substitutes for 5331-01-044-1604: 4820-00-287-3332, 3120-00-363-7623, 5950-00-645-6450 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 581R130H18?

Key specifications for 581R130H18: Material: RUBBER SILICONE CLASS Q; Center Hole Diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com