PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CF-D-1021-QF1C1-(316)Seal Assembly,shaft,spring Loade

Defense Maritime Solutions, Inc. · NSN 4320-01-204-9895 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-204-9895 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-204-9895. Primary manufacturer part number: CF-D-1021-QF1C1-(316).
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: TYPE 9 SHAFT SEAL, TFE CHEMLOY AND HIGH GRADE CARBON SPRING STAINLESS STEEL, ITEM APPLICATION SIHI VACUUM PUMP MODEL LOHY Z404 BN115.02.0
  • Cubic Measure: 0.250 CUBIC FEET
  • 4 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 4320-01-204-9895, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-204-9895
Primary Part NumberCF-D-1021-QF1C1-(316)
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDefense Maritime Solutions, Inc.
StatusACTIVE
General Characteristics Item DescriptionTYPE 9 SHAFT SEAL, TFE CHEMLOY AND HIGH GRADE CARBON SPRING STAINLESS STEEL, ITEM APPLICATION SIHI VACUUM PUMP MODEL LOHY Z404 BN115.02.0
Cubic Measure0.250 CUBIC FEET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-286-6868ID 1.625IN X OD 2.374 X .50IN W INTERCHANGEABLE
Seal,plain Encased
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5325-00-330-8254SW34048-1 INTERCHANGEABLE
Insert,screw Thread
Southeastern Equipment Company, Inc. Dba Southeastern Equipment Co
4820-00-634-8948 INTERCHANGEABLE
Valve,vacuum Regulating
5962-01-043-3940 INTERCHANGEABLE
Microcircuit,digital
3040-01-221-560550007-3 INTERCHANGEABLE
Shaft,shouldered
The Oilgear Company Dba Jiffy Lube 213 Div Oilgear
Cross-Reference Index
Part NumberManufacturer
CF-D-1021-QF1C1-(316) PRIMARY Defense Maritime Solutions, Inc. (USA)
CF-D-1021-FIG 3 John Crane, Inc (USA)
500073 Sihi Pumps, Inc. (USA)
CF-D-1021-QF1C1-(316) John Crane, Inc (USA)
Related Parts
5330-00-286-6868INTERCHANGEABLE
SEAL,PLAIN ENCASED
ID 1.625IN X OD 2.374 X .50IN W
5325-00-330-8254INTERCHANGEABLE
INSERT,SCREW THREAD
SW34048-1
4820-00-634-8948INTERCHANGEABLE
VALVE,VACUUM REGULATING
5962-01-043-3940INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
3040-01-221-5605INTERCHANGEABLE
SHAFT,SHOULDERED
50007-3

Frequently Asked Questions

What is NSN 4320-01-204-9895?

NSN 4320-01-204-9895 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 4320-01-204-9895?

NSN 4320-01-204-9895 has 4 cross-referenced part numbers: CF-D-1021-QF1C1-(316) (Defense Maritime Solutions, Inc.), CF-D-1021-FIG 3 (John Crane, Inc), 500073 (Sihi Pumps, Inc.), CF-D-1021-QF1C1-(316) (John Crane, Inc).

What NSN replaces 4320-01-204-9895?

There are 5 known substitutes for 4320-01-204-9895: 5330-00-286-6868, 5325-00-330-8254, 4820-00-634-8948 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CF-D-1021-QF1C1-(316)?

Key specifications for CF-D-1021-QF1C1-(316): General Characteristics Item Description: TYPE 9 SHAFT SEAL, TFE CHEMLOY AND HIGH GRADE CARBON SPRING STAINLESS STEEL, ITEM APPLICATION SIHI VACUUM PUMP MODEL LOHY Z404 BN115.02.0; Cubic Measure: 0.250 CUBIC FEET. 2 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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