PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16687Seal,plain Encased

Harbormaster Marine, Inc · NSN 5330-00-298-0393 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-298-0393 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-298-0393. Primary manufacturer part number: 16687.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Housing Bore Diameter: 8.125 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Material: STEEL CASE
  • Seal Width: 0.625 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 7.125 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 5330-00-298-0393, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harbormaster Marine, Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-298-0393
Primary Part Number16687
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerHarbormaster Marine, Inc
StatusACTIVE
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Housing Bore Diameter8.125 INCHES NOMINAL IN
Sealing Element StyleANGULAR
MaterialSTEEL CASE
Seal Width0.625 INCHES NOMINAL IN
Accommodated Shaft Diameter7.125 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Case StyleSQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5940-00-177-4354012-2010-479 INTERCHANGEABLE
Terminal,feedthru
Itt Cannon Rf Products
6210-00-185-27521668-7 INTERCHANGEABLE
Lens,light
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
4710-01-183-25987J6604 INTERCHANGEABLE
Tube Assembly,metal
Caterpillar Inc Div Caterpillar Defense
5306-01-300-732586576656 INTERCHANGEABLE
Bolt,machine
Cnh Industrial America Llc Dba Cnh America
1660-01-548-1394 INTERCHANGEABLE
Duct Assembly,air Conditioning-H
6210-01-576-314316687 INTERCHANGEABLE
Fixture,lighting
Jasco Products Company Llc
4720-01-578-042416687 INTERCHANGEABLE
Hose,preformed
Generac Mobile Products, Llc
6515-01-591-7014240.038 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
16687 PRIMARY Harbormaster Marine, Inc (USA)
Related Parts
5940-00-177-4354INTERCHANGEABLE
TERMINAL,FEEDTHRU
012-2010-479
6210-00-185-2752INTERCHANGEABLE
LENS,LIGHT
1668-7
4710-01-183-2598INTERCHANGEABLE
TUBE ASSEMBLY,METAL
7J6604
5306-01-300-7325INTERCHANGEABLE
BOLT,MACHINE
86576656
1660-01-548-1394INTERCHANGEABLE
DUCT ASSEMBLY,AIR CONDITIONING-H
6210-01-576-3143INTERCHANGEABLE
FIXTURE,LIGHTING
16687
4720-01-578-0424INTERCHANGEABLE
HOSE,PREFORMED
16687
6515-01-591-7014INTERCHANGEABLE
BONE PLATE
240.038

Frequently Asked Questions

What is NSN 5330-00-298-0393?

NSN 5330-00-298-0393 is a Seal,plain Encased, manufactured by Harbormaster Marine, Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-298-0393?

NSN 5330-00-298-0393 has 1 cross-referenced part number: 16687 (Harbormaster Marine, Inc).

What NSN replaces 5330-00-298-0393?

There are 8 known substitutes for 5330-00-298-0393: 5940-00-177-4354, 6210-00-185-2752, 4710-01-183-2598 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16687?

Key specifications for 16687: Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Housing Bore Diameter: 8.125 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Material: STEEL CASE. 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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