PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

63X1756Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-810-9983 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-810-9983 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-810-9983. Primary manufacturer part number: 63X1756.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Housing Bore Diameter: 3.751 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Material: STEEL CASE
  • Maximum Pressure Rating: 7.0 POUNDS PER SQUARE INCH (PSI) LBS
  • Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT
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 5330-00-810-9983, 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 3 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: Active.

Technical Specifications
ParameterValue
NSN5330-00-810-9983
Primary Part Number63X1756
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
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Housing Bore Diameter3.751 INCHES NOMINAL IN
Case StyleSQUARE
MaterialSTEEL CASE
Maximum Pressure Rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
Accommodated Shaft Maximum Rated Speed3000 FEET PER MINUTE FT
Accommodated Shaft Diameter2.437 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-220-667100252 INTERCHANGEABLE
Nut,plain,hexagon
Defense Logistics Agency Dba Defense Supply Center Philadelphia
3455-00-250-0770 INTERCHANGEABLE
Cutter,milling,end
5330-00-251-318455580 INTERCHANGEABLE
Gasket
H20 Tank Inc U S Motors Div
5935-00-258-6045276-1213P1 INTERCHANGEABLE
Connector,plug,electrical
Raytheon Company Dba Raytheon Co
1075-00-383-82703134726B INTERCHANGEABLE
Plate,retainer
Naval Ship Systems Command
1650-00-465-3738R9W1146-826-2 INTERCHANGEABLE
Filter Element,fluid
Falls Filtration Technologies, Inc.
6625-00-471-04258525S1991 INTERCHANGEABLE
Indicator,digital Display
North Atlantic Industries, Inc. Dba North Atlantic Industries
5910-00-648-791155580 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Viking Technologies, Ltd.
3455-00-953-14592518-C INTERCHANGEABLE
File,rotary
Jarvis Cutting Tools Inc
4820-01-038-2313VCL4P05A INTERCHANGEABLE
Valve,check
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Cross-Reference Index
Part NumberManufacturer
63X1756 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
8525 Concrete Transport Mixer Co (USA)
55580 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
5310-00-220-6671INTERCHANGEABLE
NUT,PLAIN,HEXAGON
00252
3455-00-250-0770INTERCHANGEABLE
CUTTER,MILLING,END
5330-00-251-3184INTERCHANGEABLE
GASKET
55580
5935-00-258-6045INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
276-1213P1
1075-00-383-8270INTERCHANGEABLE
PLATE,RETAINER
3134726B
1650-00-465-3738INTERCHANGEABLE
FILTER ELEMENT,FLUID
R9W1146-826-2
6625-00-471-0425INTERCHANGEABLE
INDICATOR,DIGITAL DISPLAY
8525S1991
5910-00-648-7911INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
55580
3455-00-953-1459INTERCHANGEABLE
FILE,ROTARY
2518-C
4820-01-038-2313INTERCHANGEABLE
VALVE,CHECK
VCL4P05A
5365-01-116-4029INTERCHANGEABLE
SPACER,SLEEVE
9232-A-171-0
5975-01-183-8749INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
8525

Frequently Asked Questions

What is NSN 5330-00-810-9983?

NSN 5330-00-810-9983 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 5330-00-810-9983?

NSN 5330-00-810-9983 has 3 cross-referenced part numbers: 63X1756 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 8525 (Concrete Transport Mixer Co), 55580 (Federal-Mogul Corp Chassis Products Div).

What NSN replaces 5330-00-810-9983?

There are 12 known substitutes for 5330-00-810-9983: 5310-00-220-6671, 3455-00-250-0770, 5330-00-251-3184 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 63X1756?

Key specifications for 63X1756: Seal Width: 0.500 INCHES NOMINAL IN; End Item Identification: W/S: SUBMARINE ENGINEERING AND DIESEL SYSTEMS; SHIP, OHIO CLASS SSN (TRIDENT); Material: RUBBER SYNTHETIC SEALING ELEMENT; Housing Bore Diameter: 3.751 INCHES NOMINAL IN. 10 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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