PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21281Seal,oil

Caterpillar Inc Div Caterpillar Defense · NSN 5330-00-927-9260 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-927-9260 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-927-9260. Primary manufacturer part number: 21281.
Features
  • Seal,oil — FSC 5330
  • 3 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,oil, cataloged under National Stock Number 5330-00-927-9260, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal,oil
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083); Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (CAGE 73782)
Technical Specifications
ParameterValue
NSN5330-00-927-9260
Primary Part Number21281
Item NameSeal,oil
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-337-9563292-1669G1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
5930-00-544-5607 INTERCHANGEABLE
Switch,thermostatic
5930-00-705-5875 INTERCHANGEABLE
Switch,thermostatic
5325-01-098-049021281 INTERCHANGEABLE
Ring,retaining
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5355-01-417-91252128-1 INTERCHANGEABLE
Dial,scale
Aerosonic Llc
1005-01-503-002421281 INTERCHANGEABLE
Bore,rod
Charles Reed Knight Jr Dba Knight's Armament Company
5980-01-523-3496 INTERCHANGEABLE
Light Emitting Diode
Cross-Reference Index
Part NumberManufacturer
21281 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
21281 Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (USA)
621281 Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (USA)
Related Parts
5950-00-337-9563INTERCHANGEABLE
TRANSFORMER,POWER
292-1669G1
5930-00-544-5607INTERCHANGEABLE
SWITCH,THERMOSTATIC
5930-00-705-5875INTERCHANGEABLE
SWITCH,THERMOSTATIC
5325-01-098-0490INTERCHANGEABLE
RING,RETAINING
21281
5355-01-417-9125INTERCHANGEABLE
DIAL,SCALE
2128-1
1005-01-503-0024INTERCHANGEABLE
BORE,ROD
21281
5980-01-523-3496INTERCHANGEABLE
LIGHT EMITTING DIODE

Frequently Asked Questions

What is NSN 5330-00-927-9260?

NSN 5330-00-927-9260 is a Seal,oil, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-927-9260?

NSN 5330-00-927-9260 has 3 cross-referenced part numbers: 21281 (Caterpillar Inc Div Caterpillar Defense), 21281 (Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co), 621281 (Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co).

What NSN replaces 5330-00-927-9260?

There are 7 known substitutes for 5330-00-927-9260: 5950-00-337-9563, 5930-00-544-5607, 5930-00-705-5875 and 4 more. Verify interchangeability with system specifications before substitution.

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