PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56309Seal,plain Encased

Altra Industrial Motion Corp. · NSN 5330-01-283-5409 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-283-5409 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-283-5409. Primary manufacturer part number: 56309.
Features
  • Seal,plain Encased — FSC 5330
  • 2 verified cross-references
  • Primary manufacturer: Altra Industrial Motion Corp.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-283-5409, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Altra Industrial Motion Corp.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal,plain Encased
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersAltra Industrial Motion Corp. (CAGE 71041)
Technical Specifications
ParameterValue
NSN5330-01-283-5409
Primary Part Number56309
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-00-339-55891DAG30 INTERCHANGEABLE
Seat,helical Compression Spring
Fwd Seagrave Holdings Lp
7530-01-608-829456309 INTERCHANGEABLE
Envelope,mailing
3 Star Papers Ltd Dba Limited Papers Div Limited Papers
Cross-Reference Index
Part NumberManufacturer
FWC752B-200S PIECE 11 Altra Industrial Motion Corp. (USA)
56309 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
5340-00-339-5589INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
1DAG30
7530-01-608-8294INTERCHANGEABLE
ENVELOPE,MAILING
56309

Frequently Asked Questions

What is NSN 5330-01-283-5409?

NSN 5330-01-283-5409 is a Seal,plain Encased, manufactured by Altra Industrial Motion Corp., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-283-5409?

NSN 5330-01-283-5409 has 2 cross-referenced part numbers: FWC752B-200S PIECE 11 (Altra Industrial Motion Corp.), 56309 (Altra Industrial Motion Corp.).

What NSN replaces 5330-01-283-5409?

There are 2 known substitutes for 5330-01-283-5409: 5340-00-339-5589, 7530-01-608-8294. Verify interchangeability with system specifications before substitution.

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