PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3740Seal Assembly,shaft,spring Loade

John Crane, Inc · NSN 4320-01-447-4716 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-447-4716 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-447-4716. Primary manufacturer part number: 3740.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: John Crane, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-447-4716, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is John Crane, Inc. 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
NSN4320-01-447-4716
Primary Part Number3740
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerJohn Crane, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6640-00-494-39653740-M INTERCHANGEABLE
Tube,extraction
Corning Incorporated Dba Corning Div Corning Life Sciences
3030-00-528-4629 INTERCHANGEABLE
Belt,v
5950-00-581-5568774960 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
7025-01-076-1778 INTERCHANGEABLE
Disk Drive Unit
5310-01-353-26623740 INTERCHANGEABLE
Washer,lock
Tpi Corp
6515-01-379-94860037400 INTERCHANGEABLE
Catheter,urethral
C R Bard Inc Div Bard Medical/urological Division
6520-01-408-13843740 INTERCHANGEABLE
Sleeve,tubing,dental
Kerr Corporation
4730-01-498-50423740 INTERCHANGEABLE
Clamp,hose
Amw Cuyuna Engine Co. Inc Dba Two Stroke International
Cross-Reference Index
Part NumberManufacturer
3740 PRIMARY John Crane, Inc (USA)
Related Parts
6640-00-494-3965INTERCHANGEABLE
TUBE,EXTRACTION
3740-M
3030-00-528-4629INTERCHANGEABLE
BELT,V
5950-00-581-5568INTERCHANGEABLE
TRANSFORMER,POWER
774960
7025-01-076-1778INTERCHANGEABLE
DISK DRIVE UNIT
5310-01-353-2662INTERCHANGEABLE
WASHER,LOCK
3740
6515-01-379-9486INTERCHANGEABLE
CATHETER,URETHRAL
0037400
6520-01-408-1384INTERCHANGEABLE
SLEEVE,TUBING,DENTAL
3740
4730-01-498-5042INTERCHANGEABLE
CLAMP,HOSE
3740

Frequently Asked Questions

What is NSN 4320-01-447-4716?

NSN 4320-01-447-4716 is a Seal Assembly,shaft,spring Loade, manufactured by John Crane, Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-447-4716?

NSN 4320-01-447-4716 has 1 cross-referenced part number: 3740 (John Crane, Inc).

What NSN replaces 4320-01-447-4716?

There are 8 known substitutes for 4320-01-447-4716: 6640-00-494-3965, 3030-00-528-4629, 5950-00-581-5568 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3740?

Key specifications for 3740: End Item Identification: MAIN FEED SYSTEM. 1 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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