PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B64681Seal Assembly,shaft,spring Loade

John Crane, Inc · NSN 4320-01-286-2308 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-286-2308 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-286-2308. Primary manufacturer part number: B64681.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 11 verified cross-references
  • 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 4320-01-286-2308, 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 11 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersDefense Maritime Solutions, Inc. (CAGE 0EYA6); The Gorman-Rupp Company Div Gorman-Rupp (CAGE 25567); John Crane, Inc (CAGE 71724); Wartsila Lips Inc (CAGE 0SYN4)
Technical Specifications
ParameterValue
NSN4320-01-286-2308
Primary Part NumberB64681
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerJohn Crane, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-196-5351 INTERCHANGEABLE
O-Ring
4920-00-621-7325S765A INTERCHANGEABLE
Test Stand,hydraulic System Comp
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
4320-00-859-6338M03068 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
John Crane, Inc
5305-00-939-92044901-60 INTERCHANGEABLE
Screw,cap,hexagon Head
Pdi Ground Support Systems, Inc.
5330-01-192-0473 INTERCHANGEABLE
Shaft Seal
5855-01-356-2759S765 INTERCHANGEABLE
Light,infrared Transmitter
Fotec Inc
Cross-Reference Index
Part NumberManufacturer
CFSP-15966 XP89M 015M Defense Maritime Solutions, Inc. (USA)
S-765-A The Gorman-Rupp Company Div Gorman-Rupp (USA)
16625-14 The Gorman-Rupp Company Div Gorman-Rupp (USA)
B64681 PRIMARY John Crane, Inc (USA)
CFSP-15966 XP89M 015M Wartsila Lips Inc (USA)
CFSP-15966 XP89M O15M John Crane, Inc (USA)
CF-SP-15966/XPMO15M John Crane, Inc (USA)
CF-SP-15966NP89MDM John Crane, Inc (USA)
CF-SP-15966/XPMO15M Wartsila Lips Inc (USA)
CFSP-15966 NP89M 015M Wartsila Lips Inc (USA)
S-765 The Gorman-Rupp Company Div Gorman-Rupp (USA)
Related Parts
5331-00-196-5351INTERCHANGEABLE
O-RING
4920-00-621-7325INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
S765A
4320-00-859-6338INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
M03068
5305-00-939-9204INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
4901-60
5330-01-192-0473INTERCHANGEABLE
SHAFT SEAL
5855-01-356-2759INTERCHANGEABLE
LIGHT,INFRARED TRANSMITTER
S765

Frequently Asked Questions

What is NSN 4320-01-286-2308?

NSN 4320-01-286-2308 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 4320-01-286-2308?

NSN 4320-01-286-2308 has 11 cross-referenced part numbers: CFSP-15966 XP89M 015M (Defense Maritime Solutions, Inc.), S-765-A (The Gorman-Rupp Company Div Gorman-Rupp), 16625-14 (The Gorman-Rupp Company Div Gorman-Rupp), B64681 (John Crane, Inc), CFSP-15966 XP89M 015M (Wartsila Lips Inc) and 6 more.

What NSN replaces 4320-01-286-2308?

There are 6 known substitutes for 4320-01-286-2308: 5331-00-196-5351, 4920-00-621-7325, 4320-00-859-6338 and 3 more. Verify interchangeability with system specifications before substitution.

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