PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

01181O-Ring

Valtek Inc · NSN 5331-01-426-8813 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-426-8813 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-426-8813. Primary manufacturer part number: 01181.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Valtek Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-426-8813, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Valtek Inc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersValtek Inc (CAGE 50815); Zf Industrieantriebe Witten Gmbh (CAGE D9182)
Technical Specifications
ParameterValue
NSN5331-01-426-8813
Primary Part Number01181
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerValtek Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-566-1124Y66SUD1 INTERCHANGEABLE
Transformer,power
Johnson Controls Inc Control Products Div
5940-00-644-86680118-01 INTERCHANGEABLE
Terminal,lug
Lockheed Martin Corporation Div Rms - Mitchel Field
6630-01-012-9495 INTERCHANGEABLE
Float,ph,chamber Assembly
Cross-Reference Index
Part NumberManufacturer
01181 PRIMARY Valtek Inc (USA)
001181.650.000 Zf Industrieantriebe Witten Gmbh (DEU)
V103958.001 ITEM 275 Valtek Inc (USA)
Related Parts
5950-00-566-1124INTERCHANGEABLE
TRANSFORMER,POWER
Y66SUD1
5940-00-644-8668INTERCHANGEABLE
TERMINAL,LUG
0118-01
6630-01-012-9495INTERCHANGEABLE
FLOAT,PH,CHAMBER ASSEMBLY

Frequently Asked Questions

What is NSN 5331-01-426-8813?

NSN 5331-01-426-8813 is a O-Ring, manufactured by Valtek Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-426-8813?

NSN 5331-01-426-8813 has 3 cross-referenced part numbers: 01181 (Valtek Inc), 001181.650.000 (Zf Industrieantriebe Witten Gmbh), V103958.001 ITEM 275 (Valtek Inc).

What NSN replaces 5331-01-426-8813?

There are 3 known substitutes for 5331-01-426-8813: 5950-00-566-1124, 5940-00-644-8668, 6630-01-012-9495. Verify interchangeability with system specifications before substitution.

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