PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

306HD24Seal,plain Encased

William Spencer · NSN 5330-00-678-1663 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-678-1663 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-678-1663. Primary manufacturer part number: 306HD24.
Features
  • Seal,plain Encased — FSC 5330
  • 1 verified cross-reference
  • Primary manufacturer: William Spencer
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-678-1663, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is William Spencer. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal,plain Encased
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersWilliam Spencer (CAGE 82181)
Technical Specifications
ParameterValue
NSN5330-00-678-1663
Primary Part Number306HD24
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerWilliam Spencer
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-585-0582 INTERCHANGEABLE
Seal,plain Encased
Cross-Reference Index
Part NumberManufacturer
306HD24 PRIMARY William Spencer (USA)
Related Parts
5330-00-585-0582INTERCHANGEABLE
SEAL,PLAIN ENCASED

Frequently Asked Questions

What is NSN 5330-00-678-1663?

NSN 5330-00-678-1663 is a Seal,plain Encased, manufactured by William Spencer, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-678-1663?

NSN 5330-00-678-1663 has 1 cross-referenced part number: 306HD24 (William Spencer).

What NSN replaces 5330-00-678-1663?

There is 1 known substitute for 5330-00-678-1663: 5330-00-585-0582. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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