PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E8Seal Assembly,shaft,spring Loade

Insinger Machine Co · NSN 4320-00-670-7684 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-670-7684 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-670-7684. Primary manufacturer part number: E8.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: CONSIST OF ONE SPRING APPROX 1.438 IN. H,W/4 LOOPS APPR0X 0.938 IN. DIA; W/1 SEAL 1/250 IN. DIA,CTR HOLE 0.624 IN. DIA; W/1 SEAL 1.000 IN. DIA,CTR HOLE 0.688 IN. DIA IN
  • 2 verified cross-references
  • Primary manufacturer: Insinger Machine Co
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 4320-00-670-7684, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Insinger Machine Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-670-7684
Primary Part NumberE8
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerInsinger Machine Co
StatusACTIVE
General Characteristics Item DescriptionCONSIST OF ONE SPRING APPROX 1.438 IN. H,W/4 LOOPS APPR0X 0.938 IN. DIA; W/1 SEAL 1/250 IN. DIA,CTR HOLE 0.624 IN. DIA; W/1 SEAL 1.000 IN. DIA,CTR HOLE 0.688 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-156-4592102668-2 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-156-4595E8T 0-11 INTERCHANGEABLE
Bearing,ball,annular
Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation
4510-00-257-2215S-2310 INTERCHANGEABLE
Control Valve,shower
Speakman Company Dba Speakman Div Plumbing, Safety, and Shower Products
5340-00-271-8569 INTERCHANGEABLE
Clamp,loop
5130-00-405-4049 INTERCHANGEABLE
Tube Cleaner
5930-00-822-5255E8 INTERCHANGEABLE
Switch,flow
Itt Mcdonnell-Miller a Unit of Itt Fluid Handling Div
4810-01-082-9012E8 INTERCHANGEABLE
Actuator,electromechanical,rotar
Flodyne Controls Inc
5120-01-140-4498 INTERCHANGEABLE
Extractor,screw
3415-01-382-0915E-8 INTERCHANGEABLE
Grinding and Buffing Machine,uti
Wissota Mfg Co Inc
Cross-Reference Index
Part NumberManufacturer
SK741 Insinger Machine Co (USA)
E8 PRIMARY Insinger Machine Co (USA)
Related Parts
3110-00-156-4592INTERCHANGEABLE
BEARING,BALL,ANNULAR
102668-2
3110-00-156-4595INTERCHANGEABLE
BEARING,BALL,ANNULAR
E8T 0-11
4510-00-257-2215INTERCHANGEABLE
CONTROL VALVE,SHOWER
S-2310
5340-00-271-8569INTERCHANGEABLE
CLAMP,LOOP
5130-00-405-4049INTERCHANGEABLE
TUBE CLEANER
5930-00-822-5255INTERCHANGEABLE
SWITCH,FLOW
E8
4810-01-082-9012INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
E8
5120-01-140-4498INTERCHANGEABLE
EXTRACTOR,SCREW
3415-01-382-0915INTERCHANGEABLE
GRINDING AND BUFFING MACHINE,UTI
E-8

Frequently Asked Questions

What is NSN 4320-00-670-7684?

NSN 4320-00-670-7684 is a Seal Assembly,shaft,spring Loade, manufactured by Insinger Machine Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-670-7684?

NSN 4320-00-670-7684 has 2 cross-referenced part numbers: SK741 (Insinger Machine Co), E8 (Insinger Machine Co).

What NSN replaces 4320-00-670-7684?

There are 9 known substitutes for 4320-00-670-7684: 3110-00-156-4592, 3110-00-156-4595, 4510-00-257-2215 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E8?

Key specifications for E8: End Item Identification: INSINGER MODELS CA AND DA UTENSIL WASHING MACHINES; General Characteristics Item Description: CONSIST OF ONE SPRING APPROX 1.438 IN. H,W/4 LOOPS APPR0X 0.938 IN. DIA; W/1 SEAL 1/250 IN. DIA,CTR HOLE 0.624 IN. DIA; W/1 SEAL 1.000 IN. DIA,CTR HOLE 0.688 IN. DIA IN. 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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