PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21158-2037Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-934-0253 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-934-0253 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-934-0253. Primary manufacturer part number: 21158-2037.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
  • Accommodated Shaft Diameter: 2.750 INCHES NOMINAL IN
  • Color: BLACK
  • Housing Bore Diameter: 3.500 INCHES NOMINAL IN
  • Material: STEEL CASE
  • 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 5330-00-934-0253, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-934-0253
Primary Part Number21158-2037
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusACTIVE
Seal Width0.500 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Accommodated Shaft Diameter2.750 INCHES NOMINAL IN
ColorBLACK
Housing Bore Diameter3.500 INCHES NOMINAL IN
MaterialSTEEL CASE
Sealing Element StyleANGULAR
Temp Rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Maximum Pressure Rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
Hardness Rating80.0 SHORE DUROMETER A NOMINAL OVERALL
Case StyleSQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5315-00-054-4109450-17 INTERCHANGEABLE
Pin,straight,headless
Lockheed Martin Corporation Div Rms - Mitchel Field
3455-00-230-7047717-015663 INTERCHANGEABLE
Cutter,milling,plain
Doall Baltimore Company
2825-00-389-848145017 INTERCHANGEABLE
Thrower,oil
Northrop Grumman Systems Corporation Div Marine Systems
3110-00-467-6870 INTERCHANGEABLE
Bearing,ball,annular
5935-00-500-87482Z7390-58 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6105-00-669-5392 INTERCHANGEABLE
Motor,alternating Current
6105-00-762-505045017 INTERCHANGEABLE
Motor,alternating Current
Alter Harry Co the Div of T E C
3020-01-186-9545 INTERCHANGEABLE
Gear,bevel
7510-01-476-8927 INTERCHANGEABLE
Tape,embossing
5305-01-698-832845017 INTERCHANGEABLE
Screw,cap,socket Head
Hillman Group, Inc., the
Cross-Reference Index
Part NumberManufacturer
45017 Drs Environmental Systems Inc (USA)
21158-2037 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
45017 Davey Compressor Co Div of Keco Industries Inc (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
63X2037 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
Related Parts
5315-00-054-4109INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
450-17
3455-00-230-7047INTERCHANGEABLE
CUTTER,MILLING,PLAIN
717-015663
2825-00-389-8481INTERCHANGEABLE
THROWER,OIL
45017
3110-00-467-6870INTERCHANGEABLE
BEARING,BALL,ANNULAR
5935-00-500-8748INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2Z7390-58
6105-00-669-5392INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
6105-00-762-5050INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
45017
3020-01-186-9545INTERCHANGEABLE
GEAR,BEVEL
7510-01-476-8927INTERCHANGEABLE
TAPE,EMBOSSING
5305-01-698-8328INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
45017

Frequently Asked Questions

What is NSN 5330-00-934-0253?

NSN 5330-00-934-0253 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: active.

What are the part numbers for NSN 5330-00-934-0253?

NSN 5330-00-934-0253 has 5 cross-referenced part numbers: 45017 (Drs Environmental Systems Inc), 21158-2037 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 45017 (Davey Compressor Co Div of Keco Industries Inc), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 63X2037 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc).

What NSN replaces 5330-00-934-0253?

There are 10 known substitutes for 5330-00-934-0253: 5315-00-054-4109, 3455-00-230-7047, 2825-00-389-8481 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21158-2037?

Key specifications for 21158-2037: Seal Width: 0.500 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT; Accommodated Shaft Diameter: 2.750 INCHES NOMINAL IN; Color: BLACK. 12 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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