PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

181W27Seal,inside,upper

Cone Drive Operations Inc · NSN 5330-00-138-4561 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-138-4561 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-138-4561. Primary manufacturer part number: 181W27.
Features
  • Seal,inside,upper — FSC 5330
  • 4 verified cross-references
  • Primary manufacturer: Cone Drive Operations Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,inside,upper, cataloged under National Stock Number 5330-00-138-4561, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cone Drive Operations Inc. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameSeal,inside,upper
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersFederal-Mogul Corp Government Sales Dept (CAGE 01212); Zf Industrieantriebe Witten Gmbh (CAGE D9182); Cone Drive Operations Inc (CAGE 97674)
Technical Specifications
ParameterValue
NSN5330-00-138-4561
Primary Part Number181W27
Item NameSeal,inside,upper
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCone Drive Operations Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-143-64915S3-1 INTERCHANGEABLE
Washer,split
Howmet Global Fastening Systems Inc Div Camloc Products
5330-00-337-54675531 INTERCHANGEABLE
Seal,oil,reverse Tr
Eaton Corp Transmission Div
5815-00-356-3419SC-C-78076-14 INTERCHANGEABLE
Keytop,keyboard
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4330-00-525-136226321-70 INTERCHANGEABLE
Filter Element,fluid
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
5310-00-530-996358A122A1678 INTERCHANGEABLE
Washer,split
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-830-79735531 INTERCHANGEABLE
Nut,self-Locking,spline
Goodrich Aerospace Canada Ltd
2995-00-969-1053 INTERCHANGEABLE
Plate,nutating
5930-01-094-8115SM-A-802900-1 INTERCHANGEABLE
Switch,flow
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6150-01-316-2267 INTERCHANGEABLE
Bus,conductor
4320-01-348-1565CW7299 PIECE 5531 INTERCHANGEABLE
Rotor,pump
Megator Corp
Cross-Reference Index
Part NumberManufacturer
5531 Federal-Mogul Corp Government Sales Dept (USA)
50790 Zf Industrieantriebe Witten Gmbh (DEU)
181W27 PRIMARY Cone Drive Operations Inc (USA)
181W287 PRIMARY Cone Drive Operations Inc (USA)
Related Parts
5310-00-143-6491INTERCHANGEABLE
WASHER,SPLIT
5S3-1
5330-00-337-5467INTERCHANGEABLE
SEAL,OIL,REVERSE TR
5531
5815-00-356-3419INTERCHANGEABLE
KEYTOP,KEYBOARD
SC-C-78076-14
4330-00-525-1362INTERCHANGEABLE
FILTER ELEMENT,FLUID
26321-70
5310-00-530-9963INTERCHANGEABLE
WASHER,SPLIT
58A122A1678
5310-00-830-7973INTERCHANGEABLE
NUT,SELF-LOCKING,SPLINE
5531
2995-00-969-1053INTERCHANGEABLE
PLATE,NUTATING
5930-01-094-8115INTERCHANGEABLE
SWITCH,FLOW
SM-A-802900-1
6150-01-316-2267INTERCHANGEABLE
BUS,CONDUCTOR
4320-01-348-1565INTERCHANGEABLE
ROTOR,PUMP
CW7299 PIECE 5531
4720-01-414-0361INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
A7590-1
5330-01-668-3731INTERCHANGEABLE
GASKET
5531

Frequently Asked Questions

What is NSN 5330-00-138-4561?

NSN 5330-00-138-4561 is a Seal,inside,upper, manufactured by Cone Drive Operations Inc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-138-4561?

NSN 5330-00-138-4561 has 4 cross-referenced part numbers: 5531 (Federal-Mogul Corp Government Sales Dept), 50790 (Zf Industrieantriebe Witten Gmbh), 181W27 (Cone Drive Operations Inc), 181W287 (Cone Drive Operations Inc).

What NSN replaces 5330-00-138-4561?

There are 12 known substitutes for 5330-00-138-4561: 5310-00-143-6491, 5330-00-337-5467, 5815-00-356-3419 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5330-00-138-4561 still in active supply?

NSN 5330-00-138-4561 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.
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