PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

640113Seal Assembly,shaft,spring Loade

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-01-515-1314 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-515-1314 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-515-1314. Primary manufacturer part number: 640113.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 6 verified cross-references
  • Primary manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
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 4320-01-515-1314, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 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)
ManufacturersBlackmer System One, Inc. Div Blackmer System One, Inc. (CAGE 1S3F8); Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (CAGE 07524)
Technical Specifications
ParameterValue
NSN4320-01-515-1314
Primary Part Number640113
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5360-00-511-1358640-1-13 INTERCHANGEABLE
Spring,helical,compression
Tactair Fluid Controls Inc
3040-01-465-3862628556 INTERCHANGEABLE
Shaft,shouldered
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
6640-01-467-1024 INTERCHANGEABLE
Slide,microscope
5330-01-491-8395 INTERCHANGEABLE
Gasket
4320-01-491-9237 INTERCHANGEABLE
Impeller,pump,centrifugal
4320-01-491-9888 INTERCHANGEABLE
Housing Section,liquid Pump
3110-01-492-3232 INTERCHANGEABLE
Retainer,ball,bearing
4320-01-565-6200640113 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
A W Chesterton Co Div Sealing Device Division
Cross-Reference Index
Part NumberManufacturer
981388 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
640113 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
604113 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
1801463 ITEM 80 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
640113 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
1801463 Blackmer System One, Inc. Div Blackmer System One, Inc. (USA)
Related Parts
5360-00-511-1358INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
640-1-13
3040-01-465-3862INTERCHANGEABLE
SHAFT,SHOULDERED
628556
6640-01-467-1024INTERCHANGEABLE
SLIDE,MICROSCOPE
5330-01-491-8395INTERCHANGEABLE
GASKET
4320-01-491-9237INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
4320-01-491-9888INTERCHANGEABLE
HOUSING SECTION,LIQUID PUMP
3110-01-492-3232INTERCHANGEABLE
RETAINER,BALL,BEARING
4320-01-565-6200INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
640113

Frequently Asked Questions

What is NSN 4320-01-515-1314?

NSN 4320-01-515-1314 is a Seal Assembly,shaft,spring Loade, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-515-1314?

NSN 4320-01-515-1314 has 6 cross-referenced part numbers: 981388 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 640113 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 604113 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 1801463 ITEM 80 (Blackmer System One, Inc. Div Blackmer System One, Inc.), 640113 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer) and 1 more.

What NSN replaces 4320-01-515-1314?

There are 8 known substitutes for 4320-01-515-1314: 5360-00-511-1358, 3040-01-465-3862, 6640-01-467-1024 and 5 more. Verify interchangeability with system specifications before substitution.

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