PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81900B3Seal Assembly,shaft,spring Loade

Schneider Electric Systems Usa Inc · NSN 4320-00-006-2489 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-006-2489 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-006-2489. Primary manufacturer part number: 81900B3.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: C0NSISTS OF 1 SPRING; 3 V-RINGS; 1 MALE ADAPTOR; AND 1 FEMALE ADAPTOR V
  • 3 verified cross-references
  • Primary manufacturer: Schneider Electric Systems Usa 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 4320-00-006-2489, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-006-2489
Primary Part Number81900B3
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerSchneider Electric Systems Usa Inc
StatusCANCELLED
General Characteristics Item DescriptionC0NSISTS OF 1 SPRING; 3 V-RINGS; 1 MALE ADAPTOR; AND 1 FEMALE ADAPTOR V
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5355-00-604-37411168881 INTERCHANGEABLE
Knob
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-00-608-58031N358 INTERCHANGEABLE
Semiconductor Device,diode
General Dynamics Mission Systems, Inc.
5342-00-712-77382164-1 INTERCHANGEABLE
Clamp Assembly Loop
Dcm Manufacturing, Inc.
5310-01-128-884221641 INTERCHANGEABLE
Washer,flat
Microwave Devices Inc
Cross-Reference Index
Part NumberManufacturer
81900B3 PRIMARY Schneider Electric Systems Usa Inc (USA)
21641 Schneider Electric Systems Usa Inc (USA)
51113-R DETAIL 4 Schneider Electric Systems Usa Inc (USA)
Related Parts
5355-00-604-3741INTERCHANGEABLE
KNOB
1168881
5961-00-608-5803INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N358
5342-00-712-7738INTERCHANGEABLE
CLAMP ASSEMBLY LOOP
2164-1
5310-01-128-8842INTERCHANGEABLE
WASHER,FLAT
21641

Frequently Asked Questions

What is NSN 4320-00-006-2489?

NSN 4320-00-006-2489 is a Seal Assembly,shaft,spring Loade, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-006-2489?

NSN 4320-00-006-2489 has 3 cross-referenced part numbers: 81900B3 (Schneider Electric Systems Usa Inc), 21641 (Schneider Electric Systems Usa Inc), 51113-R DETAIL 4 (Schneider Electric Systems Usa Inc).

What NSN replaces 4320-00-006-2489?

There are 4 known substitutes for 4320-00-006-2489: 5355-00-604-3741, 5961-00-608-5803, 5342-00-712-7738 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 81900B3?

Key specifications for 81900B3: General Characteristics Item Description: C0NSISTS OF 1 SPRING; 3 V-RINGS; 1 MALE ADAPTOR; AND 1 FEMALE ADAPTOR V. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-006-2489 still in active supply?

NSN 4320-00-006-2489 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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