PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

287778Seal,plain Encased

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5330-00-810-4773 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-810-4773 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-810-4773. Primary manufacturer part number: 287778.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 0.500 INCHES NOMINAL IN
  • Housing Bore Diameter: 1.002 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
  • Material: STEEL CASE
  • Case Style: SQUARE
  • FSC Application Data: ENGINE,RECIPROCATING,ACFT
  • Seal Width: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
  • 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 5330-00-810-4773, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-810-4773
Primary Part Number287778
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusCANCELLED
Accommodated Shaft Diameter0.500 INCHES NOMINAL IN
Housing Bore Diameter1.002 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
MaterialSTEEL CASE
Case StyleSQUARE
FSC Application DataENGINE,RECIPROCATING,ACFT
Seal Width0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Sealing Element StyleANGULAR
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
3110-00-144-86690210591 INTERCHANGEABLE
Bearing,ball,annular
Agco Corp Parts Opn
6920-00-242-509414538 INTERCHANGEABLE
Transducer,receiver
L3 Technologies, Inc. Div L3harris Edo Western Corporation
3120-00-255-0126 INTERCHANGEABLE
Bearing,washer,thrust
5310-00-394-3147 INTERCHANGEABLE
Washer,flat
2640-00-404-075414-538 INTERCHANGEABLE
Repair Kit,puncture,pneumatic Ti
Patch Rubber Co
5305-00-682-5532287788 INTERCHANGEABLE
Screw,shoulder
Honeywell International Inc. Dba Honeywell International
5962-01-070-0689MC14538BAL/883B INTERCHANGEABLE
Microcircuit,digital
Freescale Semiconductor, Inc.
5365-01-172-281114538 INTERCHANGEABLE
Shim
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
5340-01-497-618814538 INTERCHANGEABLE
Clamp,loop
Powers Holdings Inc Dba Fire Brick Engineers Co Div Curtis Industries
5330-01-556-092714538 INTERCHANGEABLE
Seal,plain Encased
Eaton Corporation Div Fed
Cross-Reference Index
Part NumberManufacturer
287788 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
14538 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
287778 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
287778 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
3110-00-144-8669INTERCHANGEABLE
BEARING,BALL,ANNULAR
0210591
6920-00-242-5094INTERCHANGEABLE
TRANSDUCER,RECEIVER
14538
3120-00-255-0126INTERCHANGEABLE
BEARING,WASHER,THRUST
5310-00-394-3147INTERCHANGEABLE
WASHER,FLAT
2640-00-404-0754INTERCHANGEABLE
REPAIR KIT,PUNCTURE,PNEUMATIC TI
14-538
5305-00-682-5532INTERCHANGEABLE
SCREW,SHOULDER
287788
5962-01-070-0689INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MC14538BAL/883B
5365-01-172-2811INTERCHANGEABLE
SHIM
14538
5340-01-497-6188INTERCHANGEABLE
CLAMP,LOOP
14538
5330-01-556-0927INTERCHANGEABLE
SEAL,PLAIN ENCASED
14538
5365-01-724-1719INTERCHANGEABLE
BUSHING,NONMETALLIC
14538

Frequently Asked Questions

What is NSN 5330-00-810-4773?

NSN 5330-00-810-4773 is a Seal,plain Encased, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-810-4773?

NSN 5330-00-810-4773 has 4 cross-referenced part numbers: 287788 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 14538 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 287778 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 287778 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5330-00-810-4773?

There are 11 known substitutes for 5330-00-810-4773: 3110-00-144-8669, 6920-00-242-5094, 3120-00-255-0126 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 287778?

Key specifications for 287778: Accommodated Shaft Diameter: 0.500 INCHES NOMINAL IN; Housing Bore Diameter: 1.002 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN; Material: STEEL CASE; Case Style: SQUARE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-810-4773 still in active supply?

NSN 5330-00-810-4773 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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