PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21158-0050Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-178-3772 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-178-3772 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-178-3772. Primary manufacturer part number: 21158-0050.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 1.004 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Material: STEEL CASE
  • Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL
  • Maximum Pressure Rating: 7.0 POUNDS PER SQUARE INCH (PSI) LBS
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
  • Sealing Element Style: ANGULAR
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 5330-00-178-3772, 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 13 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-178-3772
Primary Part Number21158-0050
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusCANCELLED
Housing Bore Diameter1.004 INCHES NOMINAL IN
Case StyleSQUARE
MaterialSTEEL CASE
Hardness Rating80.0 SHORE DUROMETER A NOMINAL OVERALL
Maximum Pressure Rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
ColorBLACK
Accommodated Shaft Diameter0.500 INCHES NOMINAL IN
Surface TreatmentPASSIVATE CASE
Temp Rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
Seal Width0.375 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5950-00-238-9439SM-B-328392 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-285-1332 INTERCHANGEABLE
Seal,plain Encased
5995-00-475-1669XH2164 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Heale Manufacturing Co Llc
5895-01-089-78572532 INTERCHANGEABLE
Divider,power,radio Frequency
Cinch Connectivity Solutions Inc
5360-01-180-238960051 INTERCHANGEABLE
Spring,helical,compression
Republic Machinery Co Inc Dba Republic Lagun Machine Tool Co
5998-01-287-520060051 INTERCHANGEABLE
Circuit Card Assembly
Orbit International Corp. Div Orbit Instrument
4730-01-465-265160051 INTERCHANGEABLE
Coupling Assembly,self-Sealing
Filmtec Corp
4510-01-480-1323JW0D-60051 INTERCHANGEABLE
Piddle Pak Relief
Alphapointe
5940-01-605-107360051 INTERCHANGEABLE
Terminal,quick Disconnect
Wells Technology, Inc.
Cross-Reference Index
Part NumberManufacturer
21158-0050 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
60051 Zf Industrieantriebe Witten Gmbh (DEU)
63A7-8452 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
VP6475 Air Hydro Power, Llc Dba Air Hydro Power Div Air Hydro Power (USA)
Related Parts
5950-00-238-9439INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-B-328392
5330-00-285-1332INTERCHANGEABLE
SEAL,PLAIN ENCASED
5995-00-475-1669INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
XH2164
5895-01-089-7857INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
2532
5360-01-180-2389INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
60051
5998-01-287-5200INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
60051
4730-01-465-2651INTERCHANGEABLE
COUPLING ASSEMBLY,SELF-SEALING
60051
4510-01-480-1323INTERCHANGEABLE
PIDDLE PAK RELIEF
JW0D-60051
5940-01-605-1073INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
60051

Frequently Asked Questions

What is NSN 5330-00-178-3772?

NSN 5330-00-178-3772 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 5330-00-178-3772?

NSN 5330-00-178-3772 has 4 cross-referenced part numbers: 21158-0050 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 60051 (Zf Industrieantriebe Witten Gmbh), 63A7-8452 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), VP6475 (Air Hydro Power, Llc Dba Air Hydro Power Div Air Hydro Power).

What NSN replaces 5330-00-178-3772?

There are 9 known substitutes for 5330-00-178-3772: 5950-00-238-9439, 5330-00-285-1332, 5995-00-475-1669 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21158-0050?

Key specifications for 21158-0050: Housing Bore Diameter: 1.004 INCHES NOMINAL IN; Case Style: SQUARE; Material: STEEL CASE; Hardness Rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-178-3772 still in active supply?

NSN 5330-00-178-3772 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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