PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28-0261O-Ring

Tri Tool Inc · NSN 5331-01-595-9134 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-595-9134 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-595-9134. Primary manufacturer part number: 28-0261.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Tri Tool Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-595-9134, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Tri Tool Inc. 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.

Technical Specifications
ParameterValue
NSN5331-01-595-9134
Primary Part Number28-0261
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerTri Tool Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2530-00-215-3916211583 INTERCHANGEABLE
Piston,pressure Rel
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
3930-00-934-7873280261 INTERCHANGEABLE
Pressure Plate
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
28-0261 PRIMARY Tri Tool Inc (USA)
Related Parts
2530-00-215-3916INTERCHANGEABLE
PISTON,PRESSURE REL
211583
3930-00-934-7873INTERCHANGEABLE
PRESSURE PLATE
280261

Frequently Asked Questions

What is NSN 5331-01-595-9134?

NSN 5331-01-595-9134 is a O-Ring, manufactured by Tri Tool Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-595-9134?

NSN 5331-01-595-9134 has 1 cross-referenced part number: 28-0261 (Tri Tool Inc).

What NSN replaces 5331-01-595-9134?

There are 2 known substitutes for 5331-01-595-9134: 2530-00-215-3916, 3930-00-934-7873. Verify interchangeability with system specifications before substitution.

What are the specifications of 28-0261?

Key specifications for 28-0261: End Item Identification: CAGE 53573, MODEL 572AC. 1 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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