PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125-26Seal,plain Encased

Dresser Industries Inc Leroi Div · NSN 5330-00-291-9639 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-291-9639 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-291-9639. Primary manufacturer part number: 125-26.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 1.500 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Case Style: SQUARE
  • Sealing Element Style: ANGULAR
  • Material: STEEL CASE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Housing Bore Diameter: 2.000 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-9639, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 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
NSN5330-00-291-9639
Primary Part Number125-26
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusCANCELLED
Accommodated Shaft Diameter1.500 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Case StyleSQUARE
Sealing Element StyleANGULAR
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Housing Bore Diameter2.000 INCHES NOMINAL IN
Seal Width0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1560-00-124-770155-22034 INTERCHANGEABLE
Weight,elevator Bal
The Boeing Company Div Legacy Am&m
2810-00-321-3074240319 INTERCHANGEABLE
Deflector,airflow
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6530-00-404-4045125-26 INTERCHANGEABLE
Cover,orthopedic Be
Stryker Corporation Div Use for Open Payments Only
4140-00-406-0320D201 INTERCHANGEABLE
Guard,fan
Philips Industries Inc
4820-00-431-165012526 INTERCHANGEABLE
Seat,valve
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
5330-00-588-027712-526 INTERCHANGEABLE
Retainer,packing
Wintec Llc
5330-00-605-2234235631 INTERCHANGEABLE
Gasket
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5365-00-807-8280 INTERCHANGEABLE
Ring,fish Tail
3010-00-959-7709610664 INTERCHANGEABLE
Insert,flexible Coupling
Rexnord Industries, Llc Div Couplings Division
5305-00-985-1302 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
837549-00 Defense Reduction Agency (USA)
125-26 Dresser Industries Inc Waukesha Engine Div (USA)
55-22034 Zf Industrieantriebe Witten Gmbh (DEU)
125-26 PRIMARY Dresser Industries Inc Leroi Div (USA)
610664 Aqua-Chem Inc Cleaver-Brooks Div (USA)
55-22034 PART 28 Euramco Safety Inc (USA)
125-26 Dresser, Llc (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
240319 Federal-Mogul Corp Chassis Products Div (USA)
240319 Federal-Mogul Corp Government Sales Dept (USA)
140319 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
1560-00-124-7701INTERCHANGEABLE
WEIGHT,ELEVATOR BAL
55-22034
2810-00-321-3074INTERCHANGEABLE
DEFLECTOR,AIRFLOW
240319
6530-00-404-4045INTERCHANGEABLE
COVER,ORTHOPEDIC BE
125-26
4140-00-406-0320INTERCHANGEABLE
GUARD,FAN
D201
4820-00-431-1650INTERCHANGEABLE
SEAT,VALVE
12526
5330-00-588-0277INTERCHANGEABLE
RETAINER,PACKING
12-526
5330-00-605-2234INTERCHANGEABLE
GASKET
235631
5365-00-807-8280INTERCHANGEABLE
RING,FISH TAIL
3010-00-959-7709INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
610664
5305-00-985-1302INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
4820-01-046-0269INTERCHANGEABLE
SEAT,VALVE
12526
4730-01-144-2155INTERCHANGEABLE
STRAINER,SEDIMENT
NA1429

Frequently Asked Questions

What is NSN 5330-00-291-9639?

NSN 5330-00-291-9639 is a Seal,plain Encased, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-291-9639?

NSN 5330-00-291-9639 has 11 cross-referenced part numbers: 837549-00 (Defense Reduction Agency), 125-26 (Dresser Industries Inc Waukesha Engine Div), 55-22034 (Zf Industrieantriebe Witten Gmbh), 125-26 (Dresser Industries Inc Leroi Div), 610664 (Aqua-Chem Inc Cleaver-Brooks Div) and 6 more.

What NSN replaces 5330-00-291-9639?

There are 12 known substitutes for 5330-00-291-9639: 1560-00-124-7701, 2810-00-321-3074, 6530-00-404-4045 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125-26?

Key specifications for 125-26: Accommodated Shaft Diameter: 1.500 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Case Style: SQUARE; Sealing Element Style: ANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-291-9639 still in active supply?

NSN 5330-00-291-9639 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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