PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51X1930Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-154-1378 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-154-1378 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-154-1378. Primary manufacturer part number: 51X1930.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
  • Case Style: SQUARE
  • Accommodated Shaft Diameter: 2.625 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Housing Bore Diameter: 3.350 INCHES NOMINAL IN
  • Seal Width: 0.375 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
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 5330-00-154-1378, 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 6 commercial cross-references from 3 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
NSN5330-00-154-1378
Primary Part Number51X1930
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusCANCELLED
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Case StyleSQUARE
Accommodated Shaft Diameter2.625 INCHES NOMINAL IN
MaterialSTEEL CASE
Housing Bore Diameter3.350 INCHES NOMINAL IN
Seal Width0.375 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Sealing Element StyleANGULAR
Maximum Pressure Rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-03501930 INTERCHANGEABLE
Cup,tapered Roller Bearing
Federal-Mogul Corp Government Sales Dept
5910-00-172-98041930 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Gifft T H Co Inc
4730-00-278-56567600015 INTERCHANGEABLE
Fitting,lubrication
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
3020-00-326-421927954 INTERCHANGEABLE
Gear,helical
Honeywell International Inc. Div Aerospace - Torrance
5920-00-538-22841930 INTERCHANGEABLE
Fuseholder,block
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
1650-00-698-6535 INTERCHANGEABLE
Lens Assembly,reticle
2540-00-788-5637ATPD-2349 TYPE III INTERCHANGEABLE
Mirror Assembly,rearview
U S Army Tank Automotive Command Amsta-Im-Mm
5950-00-806-2915368215-5 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company
5950-01-037-08601-930 INTERCHANGEABLE
Reactor
Eldec Aerospace Corp
7420-01-051-5753 INTERCHANGEABLE
Calculator,electronic
Cross-Reference Index
Part NumberManufacturer
27954 Seagrave Corp the (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
51X1930 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
63X1930 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
1930 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
X8355 Seagrave Corp the (USA)
Related Parts
3110-00-100-0350INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
1930
5910-00-172-9804INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
1930
4730-00-278-5656INTERCHANGEABLE
FITTING,LUBRICATION
7600015
3020-00-326-4219INTERCHANGEABLE
GEAR,HELICAL
27954
5920-00-538-2284INTERCHANGEABLE
FUSEHOLDER,BLOCK
1930
1650-00-698-6535INTERCHANGEABLE
LENS ASSEMBLY,RETICLE
2540-00-788-5637INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
ATPD-2349 TYPE III
5950-00-806-2915INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
368215-5
5950-01-037-0860INTERCHANGEABLE
REACTOR
1-930
7420-01-051-5753INTERCHANGEABLE
CALCULATOR,ELECTRONIC
6650-01-082-1533INTERCHANGEABLE
MICROSCOPE,OPTICAL
1930
2530-01-235-8652INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,MASTER

Frequently Asked Questions

What is NSN 5330-00-154-1378?

NSN 5330-00-154-1378 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 5330-00-154-1378?

NSN 5330-00-154-1378 has 6 cross-referenced part numbers: 27954 (Seagrave Corp the), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 51X1930 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 63X1930 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 1930 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc) and 1 more.

What NSN replaces 5330-00-154-1378?

There are 12 known substitutes for 5330-00-154-1378: 3110-00-100-0350, 5910-00-172-9804, 4730-00-278-5656 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51X1930?

Key specifications for 51X1930: Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT; Case Style: SQUARE; Accommodated Shaft Diameter: 2.625 INCHES NOMINAL IN; Material: STEEL CASE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-154-1378 still in active supply?

NSN 5330-00-154-1378 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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