PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1557052-8O-Ring

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5331-00-926-9349 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-926-9349 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-926-9349. Primary manufacturer part number: 1557052-8.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 3 verified cross-references
  • Primary manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-926-9349, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-926-9349
Primary Part Number1557052-8
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Center Hole Diameter3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5905-00-626-3754 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
6130-00-734-462523408MI INTERCHANGEABLE
Power Supply
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
5965-00-739-206366B853 INTERCHANGEABLE
Cushion,microphone
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5998-01-080-468321573 INTERCHANGEABLE
Circuit Card Assembly
United States Department of the Navy Dba Naval Undersea Warfare Ctr Div
2940-01-539-477121573 INTERCHANGEABLE
Filter Element,fluid
Monarch Machine Tool Co the
Cross-Reference Index
Part NumberManufacturer
1557052-8 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
21573 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
82.27X1.78 23 B7 Stacem (FRA)
Related Parts
5905-00-626-3754INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
6130-00-734-4625INTERCHANGEABLE
POWER SUPPLY
23408MI
5965-00-739-2063INTERCHANGEABLE
CUSHION,MICROPHONE
66B853
5998-01-080-4683INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21573
2940-01-539-4771INTERCHANGEABLE
FILTER ELEMENT,FLUID
21573

Frequently Asked Questions

What is NSN 5331-00-926-9349?

NSN 5331-00-926-9349 is a O-Ring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-926-9349?

NSN 5331-00-926-9349 has 3 cross-referenced part numbers: 1557052-8 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 21573 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 82.27X1.78 23 B7 (Stacem).

What NSN replaces 5331-00-926-9349?

There are 5 known substitutes for 5331-00-926-9349: 5905-00-626-3754, 6130-00-734-4625, 5965-00-739-2063 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1557052-8?

Key specifications for 1557052-8: Center Hole Diameter: 3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 total characteristics are documented in the Federal Logistics Information System.

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