PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85231Seal Assembly,shaft,spring Loade

Magnetic Seal Llc · NSN 4320-01-318-3682 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-318-3682 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-318-3682. Primary manufacturer part number: 85231.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: SEAL ASSY CONSISTS OF; 1 SEAL CASE MADE FROM NO. 416 STAINLESS STEEL; 3O-RINGS MADE FROM FLUOROCARBON; 1 SEALRING MADE FROM CARBON GRAPHITE(GS-100); 1 MAGNET MADE FROM ALNICO-5; 1 ADAPTER MADE FROM NO. 303 STAINLESS STEEL
  • Functional Description: USED ON HYDRAULIC MOTOR FOR B-52
  • 1 verified cross-reference
  • Primary manufacturer: Magnetic Seal Llc
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 4320-01-318-3682, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Magnetic Seal Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4320-01-318-3682
Primary Part Number85231
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerMagnetic Seal Llc
StatusACTIVE
General Characteristics Item DescriptionSEAL ASSY CONSISTS OF; 1 SEAL CASE MADE FROM NO. 416 STAINLESS STEEL; 3O-RINGS MADE FROM FLUOROCARBON; 1 SEALRING MADE FROM CARBON GRAPHITE(GS-100); 1 MAGNET MADE FROM ALNICO-5; 1 ADAPTER MADE FROM NO. 303 STAINLESS STEEL
Functional DescriptionUSED ON HYDRAULIC MOTOR FOR B-52
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5342-00-329-13297001-H INTERCHANGEABLE
Mount,resilient,weapon System
Hutchinson Aerospace & Industry, Inc.
1680-00-390-6614 INTERCHANGEABLE
Carrier Asy
5120-00-971-7053HSF-25T INTERCHANGEABLE
Face,hammer,inserted
Williams J H Industrial Products Inc
3950-01-187-9887 INTERCHANGEABLE
Data Box,cable Guid
8140-01-246-8553 INTERCHANGEABLE
Pad,cushioning
6630-01-262-155885231 INTERCHANGEABLE
Housing,electrode
Ciba Corning Diagnostics Corp a Joint Venture
6145-01-288-947685231 INTERCHANGEABLE
Cable,power,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
Cross-Reference Index
Part NumberManufacturer
85231 PRIMARY Magnetic Seal Llc (USA)
Related Parts
5342-00-329-1329INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
7001-H
1680-00-390-6614INTERCHANGEABLE
CARRIER ASY
5120-00-971-7053INTERCHANGEABLE
FACE,HAMMER,INSERTED
HSF-25T
3950-01-187-9887INTERCHANGEABLE
DATA BOX,CABLE GUID
8140-01-246-8553INTERCHANGEABLE
PAD,CUSHIONING
6630-01-262-1558INTERCHANGEABLE
HOUSING,ELECTRODE
85231
6145-01-288-9476INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
85231

Frequently Asked Questions

What is NSN 4320-01-318-3682?

NSN 4320-01-318-3682 is a Seal Assembly,shaft,spring Loade, manufactured by Magnetic Seal Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-318-3682?

NSN 4320-01-318-3682 has 1 cross-referenced part number: 85231 (Magnetic Seal Llc).

What NSN replaces 4320-01-318-3682?

There are 7 known substitutes for 4320-01-318-3682: 5342-00-329-1329, 1680-00-390-6614, 5120-00-971-7053 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 85231?

Key specifications for 85231: General Characteristics Item Description: SEAL ASSY CONSISTS OF; 1 SEAL CASE MADE FROM NO. 416 STAINLESS STEEL; 3O-RINGS MADE FROM FLUOROCARBON; 1 SEALRING MADE FROM CARBON GRAPHITE(GS-100); 1 MAGNET MADE FROM ALNICO-5; 1 ADAPTER MADE FROM NO. 303 STAINLESS STEEL; Functional Description: USED ON HYDRAULIC MOTOR FOR B-52. 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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