PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CFSP-37538Seal Assembly,shaft,spring Loade

Defense Maritime Solutions, Inc. · NSN 4320-01-032-7152 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-032-7152 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-032-7152. Primary manufacturer part number: CFSP-37538.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: CONSISTS OF VITON O-RINGS AND BELLOWS; NICKEL BOUND TUNGSTEN CARBIDE STATIONARY MATING RING; AND STAINLESS STEEL TYPE 316 SPRINGS AND METAL PARTS
  • 8 verified cross-references
  • Primary manufacturer: Defense Maritime Solutions, 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 4320-01-032-7152, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-032-7152
Primary Part NumberCFSP-37538
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDefense Maritime Solutions, Inc.
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF VITON O-RINGS AND BELLOWS; NICKEL BOUND TUNGSTEN CARBIDE STATIONARY MATING RING; AND STAINLESS STEEL TYPE 316 SPRINGS AND METAL PARTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-227-2344312346PCR3S3T3 INTERCHANGEABLE
Bearing,ball,annular
Naval Ship Systems Command
5935-00-478-1197LP50P791-81MFX2 INTERCHANGEABLE
Connector,receptacle,electrical
Armel De Llc Dba Armel Electronics
5315-00-616-5514MS35756-6 INTERCHANGEABLE
Key,woodruff
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
1630-00-907-266771167902 INTERCHANGEABLE
Parts Kit,cylinder
Hydro-Aire Aerospace Corp
5305-00-937-25681BN4C31P1 INTERCHANGEABLE
Screw,cap,socket Head
H-K Connecticut Holding Company
5340-01-110-36705479 INTERCHANGEABLE
Plunger,detent
Hoyt Corporation
5330-01-451-41715479 INTERCHANGEABLE
Packing,preformed
Oberdorfer Pumps Inc
Cross-Reference Index
Part NumberManufacturer
CF-SP-37538-7/8 John Crane, Inc (USA)
CFSP-37538 Wartsila Lips Inc (USA)
CFSP37538/BF171 John Crane, Inc (USA)
CFSP-37538 PRIMARY Defense Maritime Solutions, Inc. (USA)
CF-SP-37538 John Crane, Inc (USA)
CFSP37538/XF1O151316 John Crane, Inc (USA)
5479 Megator Corp (USA)
CFSP37538/XF1O151316 Wartsila Lips Inc (USA)
Related Parts
3110-00-227-2344INTERCHANGEABLE
BEARING,BALL,ANNULAR
312346PCR3S3T3
5935-00-478-1197INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
LP50P791-81MFX2
5315-00-616-5514INTERCHANGEABLE
KEY,WOODRUFF
MS35756-6
1630-00-907-2667INTERCHANGEABLE
PARTS KIT,CYLINDER
71167902
5305-00-937-2568INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
1BN4C31P1
5340-01-110-3670INTERCHANGEABLE
PLUNGER,DETENT
5479
5330-01-451-4171INTERCHANGEABLE
PACKING,PREFORMED
5479

Frequently Asked Questions

What is NSN 4320-01-032-7152?

NSN 4320-01-032-7152 is a Seal Assembly,shaft,spring Loade, manufactured by Defense Maritime Solutions, Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-032-7152?

NSN 4320-01-032-7152 has 8 cross-referenced part numbers: CF-SP-37538-7/8 (John Crane, Inc), CFSP-37538 (Wartsila Lips Inc), CFSP37538/BF171 (John Crane, Inc), CFSP-37538 (Defense Maritime Solutions, Inc.), CF-SP-37538 (John Crane, Inc) and 3 more.

What NSN replaces 4320-01-032-7152?

There are 7 known substitutes for 4320-01-032-7152: 3110-00-227-2344, 5935-00-478-1197, 5315-00-616-5514 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CFSP-37538?

Key specifications for CFSP-37538: General Characteristics Item Description: CONSISTS OF VITON O-RINGS AND BELLOWS; NICKEL BOUND TUNGSTEN CARBIDE STATIONARY MATING RING; AND STAINLESS STEEL TYPE 316 SPRINGS AND METAL PARTS. 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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