PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2660Seal,plain Encased

Triumph Gear Systems Inc Dba Triumph Gear Systems Inc · NSN 5330-00-178-3837 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-178-3837 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-178-3837. Primary manufacturer part number: 2660.
Features
  • Seal,plain Encased — FSC 5330
  • Sealing Element Style: ANGULAR
  • Case Style: SQUARE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Accommodated Shaft Diameter: 4.250 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Housing Bore Diameter: 5.375 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-178-3837, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Triumph Gear Systems Inc Dba Triumph Gear Systems Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-178-3837
Primary Part Number2660
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerTriumph Gear Systems Inc Dba Triumph Gear Systems Inc
StatusCANCELLED
Sealing Element StyleANGULAR
Case StyleSQUARE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Accommodated Shaft Diameter4.250 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Seal Width0.500 INCHES NOMINAL IN
Housing Bore Diameter5.375 INCHES NOMINAL IN
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5995-00-039-48888016643 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Us Army Aviation and Missile Command
6640-00-467-09032660 INTERCHANGEABLE
Bottle,stopper
Orbeco-Hellige, Inc.
4820-00-474-21882660 INTERCHANGEABLE
Valve,plug
Meggitt North Hollywood Inc
5310-00-575-52922660 INTERCHANGEABLE
Washer,shouldered
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
2940-01-106-677442660 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
6730-01-123-8737 INTERCHANGEABLE
Projector,still Picture
6550-01-174-58442660 INTERCHANGEABLE
Test Strips and Color Chart,gluc
Bayer Corp Diagnostics Div
3030-01-271-97986866 INTERCHANGEABLE
Belt,v
Gates Corporation
5310-01-293-94702660 INTERCHANGEABLE
Washer,flat
Thermo Electric Company Inc. Dba Thermo Electric Company
5305-01-302-945871997-6 INTERCHANGEABLE
Setscrew
Lawler Manufacturing Company, Inc.
Cross-Reference Index
Part NumberManufacturer
2660 PRIMARY Triumph Gear Systems Inc Dba Triumph Gear Systems Inc (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
15005-167 PRIMARY Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
N220ALT1PC96 PRIMARY Triumph Gear Systems Inc Dba Triumph Gear Systems Inc (USA)
2660 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
Related Parts
5995-00-039-4888INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
8016643
6640-00-467-0903INTERCHANGEABLE
BOTTLE,STOPPER
2660
4820-00-474-2188INTERCHANGEABLE
VALVE,PLUG
2660
5310-00-575-5292INTERCHANGEABLE
WASHER,SHOULDERED
2660
2940-01-106-6774INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42660
6730-01-123-8737INTERCHANGEABLE
PROJECTOR,STILL PICTURE
6550-01-174-5844INTERCHANGEABLE
TEST STRIPS AND COLOR CHART,GLUC
2660
3030-01-271-9798INTERCHANGEABLE
BELT,V
6866
5310-01-293-9470INTERCHANGEABLE
WASHER,FLAT
2660
5305-01-302-9458INTERCHANGEABLE
SETSCREW
71997-6
6750-01-380-1292INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
6105-01-435-1556INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT

Frequently Asked Questions

What is NSN 5330-00-178-3837?

NSN 5330-00-178-3837 is a Seal,plain Encased, manufactured by Triumph Gear Systems Inc Dba Triumph Gear Systems Inc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-178-3837?

NSN 5330-00-178-3837 has 5 cross-referenced part numbers: 2660 (Triumph Gear Systems Inc Dba Triumph Gear Systems Inc), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 15005-167 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), N220ALT1PC96 (Triumph Gear Systems Inc Dba Triumph Gear Systems Inc), 2660 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc).

What NSN replaces 5330-00-178-3837?

There are 12 known substitutes for 5330-00-178-3837: 5995-00-039-4888, 6640-00-467-0903, 4820-00-474-2188 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2660?

Key specifications for 2660: Sealing Element Style: ANGULAR; Case Style: SQUARE; Material: RUBBER SYNTHETIC SEALING ELEMENT; Accommodated Shaft Diameter: 4.250 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-178-3837 still in active supply?

NSN 5330-00-178-3837 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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