PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21158-0898Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-225-3638 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-225-3638 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-225-3638. Primary manufacturer part number: 21158-0898.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 1.750 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
  • Seal Width: 0.375 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Surface Treatment: ZINC CASE
  • Housing Bore Diameter: 2.437 INCHES NOMINAL IN
  • Case Style: SQUARE
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 5330-00-225-3638, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-225-3638
Primary Part Number21158-0898
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusCANCELLED
Accommodated Shaft Diameter1.750 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Seal Width0.375 INCHES NOMINAL IN
MaterialSTEEL CASE
Surface TreatmentZINC CASE
Housing Bore Diameter2.437 INCHES NOMINAL IN
Case StyleSQUARE
Sealing Element StyleANGULAR
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5330-00-171-490521158-0898 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
Cross-Reference Index
Part NumberManufacturer
21158-0898 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
63X898 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
E12638W Blaw Knox Corp Aetna-Standard Engineering Div (USA)
Related Parts
5330-00-171-4905INTERCHANGEABLE
SEAL,PLAIN ENCASED
21158-0898

Frequently Asked Questions

What is NSN 5330-00-225-3638?

NSN 5330-00-225-3638 is a Seal,plain Encased, manufactured by Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-225-3638?

NSN 5330-00-225-3638 has 4 cross-referenced part numbers: 21158-0898 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 63X898 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), E12638W (Blaw Knox Corp Aetna-Standard Engineering Div).

What NSN replaces 5330-00-225-3638?

There is 1 known substitute for 5330-00-225-3638: 5330-00-171-4905. Verify interchangeability with system specifications before substitution.

What are the specifications of 21158-0898?

Key specifications for 21158-0898: Accommodated Shaft Diameter: 1.750 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT; Seal Width: 0.375 INCHES NOMINAL IN; Material: STEEL CASE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-225-3638 still in active supply?

NSN 5330-00-225-3638 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.
PartsTable Design LLC · partstable.com