PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27-409981O-Ring

Microwave Power Products, Inc. Div Microwave Power Products Division · NSN 5331-00-988-7907 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-988-7907 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-988-7907. Primary manufacturer part number: 27-409981.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.093 INCHES NOMINAL IN
  • Center Hole Diameter: 0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
  • Outside Diameter: 0.557 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN
  • Temp Rating: -60.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
  • Hardness Rating: 60.0 SHORE DUROMETER A NOMINAL
  • Material: RUBBER SILICONE CLASS Q
  • 9 verified cross-references
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 5331-00-988-7907, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Microwave Power Products, Inc. Div Microwave Power Products Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-988-7907
Primary Part Number27-409981
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMicrowave Power Products, Inc. Div Microwave Power Products Division
StatusCANCELLED
Cross-Sectional Height0.093 INCHES NOMINAL IN
Center Hole Diameter0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
Outside Diameter0.557 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN
Temp Rating-60.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
Hardness Rating60.0 SHORE DUROMETER A NOMINAL
MaterialRUBBER SILICONE CLASS Q
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5331-00-101-8610 INTERCHANGEABLE
O-Ring
5331-00-168-18982285N INTERCHANGEABLE
O-Ring
Carlisle & Finch Co
5331-00-290-8828PRP902-8 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5331-00-712-1473 INTERCHANGEABLE
O-Ring
5331-01-006-94842-11S613-60 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-01-249-7645ARP-568-110 INTERCHANGEABLE
O-Ring
Chicago Gasket Co
Cross-Reference Index
Part NumberManufacturer
200114LPC469 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
2-110 S613-60 Parker Hannifin Gmbh O-Ring Division (DEU)
AS568-110 Sae International Dba Sae International (USA)
2-110S613-6 Parker-Hannifin Corp Div O-Ring Division (USA)
ARP568-110 Zf Industrieantriebe Witten Gmbh (DEU)
27-409981 Communications & Power Industries International Inc. Zweigniederlassung Ismaning (DEU)
27-409981 PRIMARY Microwave Power Products, Inc. Div Microwave Power Products Division (USA)
2-110S418-6 Parker-Hannifin Corp Div O-Ring Division (USA)
AS568-110 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-101-8610INTERCHANGEABLE
O-RING
5331-00-168-1898INTERCHANGEABLE
O-RING
2285N
5331-00-290-8828INTERCHANGEABLE
O-RING
PRP902-8
5331-00-712-1473INTERCHANGEABLE
O-RING
5331-01-006-9484INTERCHANGEABLE
O-RING
2-11S613-60
5331-01-249-7645INTERCHANGEABLE
O-RING
ARP-568-110

Frequently Asked Questions

What is NSN 5331-00-988-7907?

NSN 5331-00-988-7907 is a O-Ring, manufactured by Microwave Power Products, Inc. Div Microwave Power Products Division, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-988-7907?

NSN 5331-00-988-7907 has 9 cross-referenced part numbers: 200114LPC469 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 2-110 S613-60 (Parker Hannifin Gmbh O-Ring Division), AS568-110 (Sae International Dba Sae International), 2-110S613-6 (Parker-Hannifin Corp Div O-Ring Division), ARP568-110 (Zf Industrieantriebe Witten Gmbh) and 4 more.

What NSN replaces 5331-00-988-7907?

There are 6 known substitutes for 5331-00-988-7907: 5331-00-101-8610, 5331-00-168-1898, 5331-00-290-8828 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27-409981?

Key specifications for 27-409981: Cross-Sectional Height: 0.093 INCHES NOMINAL IN; Center Hole Diameter: 0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN; Outside Diameter: 0.557 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN; Temp Rating: -60.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-988-7907 still in active supply?

NSN 5331-00-988-7907 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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