PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21158-1821Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-179-1430 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-179-1430 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-179-1430. Primary manufacturer part number: 21158-1821.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 3.500 INCHES NOMINAL IN
  • Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
  • Case Style: SQUARE
  • Accommodated Shaft Diameter: 2.500 INCHES NOMINAL IN
  • Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Maximum Pressure Rating: 7.0 POUNDS PER SQUARE INCH (PSI) LBS
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 5330-00-179-1430, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 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
NSN5330-00-179-1430
Primary Part Number21158-1821
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusCANCELLED
Housing Bore Diameter3.500 INCHES NOMINAL IN
Temp Rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
Case StyleSQUARE
Accommodated Shaft Diameter2.500 INCHES NOMINAL IN
Hardness Rating80.0 SHORE DUROMETER A NOMINAL OVERALL
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Maximum Pressure Rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
MaterialSTEEL CASE
Seal Width0.500 INCHES NOMINAL IN
ColorBLACK
Sealing Element StyleANGULAR
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3040-00-125-81858157 INTERCHANGEABLE
Lever,manual Control
Telemechanics Inc
8010-00-141-2950 INTERCHANGEABLE
Enamel
5305-00-285-3871 INTERCHANGEABLE
Screw,cap,hexagon Head
2825-00-388-68998157 INTERCHANGEABLE
Guide Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5340-00-846-732614133 INTERCHANGEABLE
Hanger,pipe
Hoist Liftruck Mfg Inc
4820-01-010-162964414 INTERCHANGEABLE
Seat,valve
Circor Aerospace, Inc. Dba Circor Aerospace Inc
5977-01-026-763781-5-7 INTERCHANGEABLE
Brush,electrical Contact
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
4140-01-115-5163 INTERCHANGEABLE
Fan,centrifugal
5950-01-116-1900905793-1 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6220-01-203-699714133 INTERCHANGEABLE
Base
Grimes Aerospace Company
Cross-Reference Index
Part NumberManufacturer
RD52688 Zf Industrieantriebe Witten Gmbh (DEU)
455147 Federal-Mogul Corp Government Sales Dept (USA)
14133 Dressta North America Ltd (USA)
485147 Federal-Mogul Corp Government Sales Dept (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
21158-1821 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
14133 Komatsu America Corporation (USA)
8157 Drs Environmental Systems Inc (USA)
3PS396 Chicago Pneumatic Tool Co (USA)
Related Parts
3040-00-125-8185INTERCHANGEABLE
LEVER,MANUAL CONTROL
8157
8010-00-141-2950INTERCHANGEABLE
ENAMEL
5305-00-285-3871INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
2825-00-388-6899INTERCHANGEABLE
GUIDE ASSEMBLY
8157
5340-00-846-7326INTERCHANGEABLE
HANGER,PIPE
14133
4820-01-010-1629INTERCHANGEABLE
SEAT,VALVE
64414
5977-01-026-7637INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
81-5-7
4140-01-115-5163INTERCHANGEABLE
FAN,CENTRIFUGAL
5950-01-116-1900INTERCHANGEABLE
TRANSFORMER,POWER
905793-1
6220-01-203-6997INTERCHANGEABLE
BASE
14133
4730-01-208-9226INTERCHANGEABLE
ELBOW,PIPE
0031130-020
5360-01-260-5648INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
8157

Frequently Asked Questions

What is NSN 5330-00-179-1430?

NSN 5330-00-179-1430 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 5330-00-179-1430?

NSN 5330-00-179-1430 has 9 cross-referenced part numbers: RD52688 (Zf Industrieantriebe Witten Gmbh), 455147 (Federal-Mogul Corp Government Sales Dept), 14133 (Dressta North America Ltd), 485147 (Federal-Mogul Corp Government Sales Dept), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia) and 4 more.

What NSN replaces 5330-00-179-1430?

There are 12 known substitutes for 5330-00-179-1430: 3040-00-125-8185, 8010-00-141-2950, 5305-00-285-3871 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21158-1821?

Key specifications for 21158-1821: Housing Bore Diameter: 3.500 INCHES NOMINAL IN; Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF; Case Style: SQUARE; Accommodated Shaft Diameter: 2.500 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-179-1430 still in active supply?

NSN 5330-00-179-1430 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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