PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21158-0910Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-285-8400 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-285-8400 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-285-8400. Primary manufacturer part number: 21158-0910.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Housing Bore Diameter: 2.686 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
  • Sealing Element Style: ANGULAR
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Material: STEEL CASE
  • Seal Width: 0.375 INCHES NOMINAL IN
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 5330-00-285-8400, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 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
NSN5330-00-285-8400
Primary Part Number21158-0910
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusACTIVE
Case StyleSQUARE
Housing Bore Diameter2.686 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
MaterialRUBBER SYNTHETIC SEALING ELEMENT
MaterialSTEEL CASE
Seal Width0.375 INCHES NOMINAL IN
Accommodated Shaft Diameter1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5331-00-034-2378G263 INTERCHANGEABLE
O-Ring
Paccar Winch Inc Dba Paccar Winch Division
4730-00-541-86805033-4 INTERCHANGEABLE
Packing Nut
Columbus Jack Corporation Div Columbus Jack
5940-00-552-36361246234-1 INTERCHANGEABLE
Terminal,lug
Honeywell Intl Inc Defense Avionics Systems
5360-00-598-4964SCB69337-7 INTERCHANGEABLE
Spring,helical,extension
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1680-00-630-744350334 INTERCHANGEABLE
Parts Kit,actuator,
Meggitt North Hollywood Inc
2930-00-834-09338334 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
5940-01-020-087250334 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
5995-01-182-7125080-080-001 INTERCHANGEABLE
Cable Assembly
Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division
6150-01-616-086550334 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Aerovironment, Inc. Dba Aerovironment Inc
5120-01-677-854950334 INTERCHANGEABLE
Entry Tool
5.11 Tactical Inc
Cross-Reference Index
Part NumberManufacturer
65X910 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
51X910 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
910 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
63X910 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
21158-0910 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
50334 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
5331-00-034-2378INTERCHANGEABLE
O-RING
G263
4730-00-541-8680INTERCHANGEABLE
PACKING NUT
5033-4
5940-00-552-3636INTERCHANGEABLE
TERMINAL,LUG
1246234-1
5360-00-598-4964INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
SCB69337-7
1680-00-630-7443INTERCHANGEABLE
PARTS KIT,ACTUATOR,
50334
2930-00-834-0933INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8334
5940-01-020-0872INTERCHANGEABLE
TERMINAL,LUG
50334
5995-01-182-7125INTERCHANGEABLE
CABLE ASSEMBLY
080-080-001
6150-01-616-0865INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
50334
5120-01-677-8549INTERCHANGEABLE
ENTRY TOOL
50334

Frequently Asked Questions

What is NSN 5330-00-285-8400?

NSN 5330-00-285-8400 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 5330-00-285-8400?

NSN 5330-00-285-8400 has 7 cross-referenced part numbers: 65X910 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 51X910 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 910 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 63X910 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc) and 2 more.

What NSN replaces 5330-00-285-8400?

There are 10 known substitutes for 5330-00-285-8400: 5331-00-034-2378, 4730-00-541-8680, 5940-00-552-3636 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21158-0910?

Key specifications for 21158-0910: Case Style: SQUARE; Housing Bore Diameter: 2.686 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT; Sealing Element Style: ANGULAR. 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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