PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21659Seal,plain Encased

Alliance Laundry Systems Llc · NSN 5330-00-997-1910 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-997-1910 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-997-1910. Primary manufacturer part number: 21659.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Maximum Rated Speed: 650 FEET PER MINUTE FT
  • Housing Bore Diameter: 2.439 INCHES MINIMUM AND 2.440 INCHES MAXIMUM IN
  • Case Style: RECESSED
  • Material Document and Classification: ASTM D2000 5BG710A14B14E14E34 ASSN STD SINGLE MATERIAL RESPONSE SEALING ELEMENT
  • Material: RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
  • Seal Width: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
  • Accommodated Shaft Diameter: 1.375 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Polyester Urethane Class Au or Rubber Polyether Urethane Class Eu or Rubber Butadiene-Acrylonitrile Class Nbr Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-997-1910, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Alliance Laundry Systems Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-997-1910
Primary Part Number21659
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerAlliance Laundry Systems Llc
StatusACTIVE
Accommodated Shaft Maximum Rated Speed650 FEET PER MINUTE FT
Housing Bore Diameter2.439 INCHES MINIMUM AND 2.440 INCHES MAXIMUM IN
Case StyleRECESSED
Material Document and ClassificationASTM D2000 5BG710A14B14E14E34 ASSN STD SINGLE MATERIAL RESPONSE SEALING ELEMENT
MaterialRUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OR RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
Seal Width0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Accommodated Shaft Diameter1.375 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN
Sealing Element StyleVERTICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-647-7183135-1171 INTERCHANGEABLE
Reactor
Viking Technologies, Ltd.
6625-01-278-8133NW21659 INTERCHANGEABLE
Ammeter
Tld Wollard Llc
5307-01-413-511921659 INTERCHANGEABLE
Stud,plain
Industrial Technologies and Services Llc
Cross-Reference Index
Part NumberManufacturer
21659 Alliance Laundry Systems Llc (USA)
Related Parts
5950-00-647-7183INTERCHANGEABLE
REACTOR
135-1171
6625-01-278-8133INTERCHANGEABLE
AMMETER
NW21659
5307-01-413-5119INTERCHANGEABLE
STUD,PLAIN
21659

Frequently Asked Questions

What is NSN 5330-00-997-1910?

NSN 5330-00-997-1910 is a Seal,plain Encased, manufactured by Alliance Laundry Systems Llc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-997-1910?

NSN 5330-00-997-1910 has 1 cross-referenced part number: 21659 (Alliance Laundry Systems Llc).

What NSN replaces 5330-00-997-1910?

There are 3 known substitutes for 5330-00-997-1910: 5950-00-647-7183, 6625-01-278-8133, 5307-01-413-5119. Verify interchangeability with system specifications before substitution.

What are the specifications of 21659?

Key specifications for 21659: Accommodated Shaft Maximum Rated Speed: 650 FEET PER MINUTE FT; Housing Bore Diameter: 2.439 INCHES MINIMUM AND 2.440 INCHES MAXIMUM IN; Case Style: RECESSED; Material Document and Classification: ASTM D2000 5BG710A14B14E14E34 ASSN STD SINGLE MATERIAL RESPONSE SEALING ELEMENT. 8 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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