PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50107Seal Assembly,shaft,spring Loade

A W Chesterton Co Div Sealing Device Division · NSN 4320-01-434-3003 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-434-3003 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-434-3003. Primary manufacturer part number: 50107.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: SELF ALIGNING STATIONARY UNIT ENGINEERED TO OPERATE AGAINST ROTATING SEAL UNITS; FLEXING FACE IS FREE TO ADJUST AUTOMATICALLY TO A RIGHT ANGLE FROM THE SHAFT; AVAILABLE WITH 316 STAINLESS STEEL HOLDER AND SILICON CARBIDE OR ALUMINA CERAMIC FACE AND TUNGSTEN CARBIDE PLATED STAINLESS STEEL FACE; 1-1/4 IN INSIDE DIAMETER IN
  • 1 verified cross-reference
  • Primary manufacturer: A W Chesterton Co Div Sealing Device Division
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 4320-01-434-3003, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is A W Chesterton Co Div Sealing Device Division. Government technical data includes 1 verified specification, 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
NSN4320-01-434-3003
Primary Part Number50107
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerA W Chesterton Co Div Sealing Device Division
StatusACTIVE
General Characteristics Item DescriptionSELF ALIGNING STATIONARY UNIT ENGINEERED TO OPERATE AGAINST ROTATING SEAL UNITS; FLEXING FACE IS FREE TO ADJUST AUTOMATICALLY TO A RIGHT ANGLE FROM THE SHAFT; AVAILABLE WITH 316 STAINLESS STEEL HOLDER AND SILICON CARBIDE OR ALUMINA CERAMIC FACE AND TUNGSTEN CARBIDE PLATED STAINLESS STEEL FACE; 1-1/4 IN INSIDE DIAMETER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2825-00-317-432950-107 INTERCHANGEABLE
Labyrinth,packing
Steward Machine Co Inc
5310-00-618-047550107 INTERCHANGEABLE
Washer,flat
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
4030-01-070-980650107 INTERCHANGEABLE
Thimble,rope
Paccar Winch Inc Dba Paccar Winch Division
5930-01-400-417150107 INTERCHANGEABLE
Switch,pull
Cole Hersee Company
5340-01-505-002150107 INTERCHANGEABLE
Clamp,loop
Cooper Crouse-Hinds Llc
4810-01-524-670450107 INTERCHANGEABLE
Slide,directional Control Linear
Allied Systems Company Dba Allied Systems Co
4010-01-549-380050107 INTERCHANGEABLE
Wire Rope Assembly,single Leg
American Apex Corporation
Cross-Reference Index
Part NumberManufacturer
50107 PRIMARY A W Chesterton Co Div Sealing Device Division (USA)
Related Parts
2825-00-317-4329INTERCHANGEABLE
LABYRINTH,PACKING
50-107
5310-00-618-0475INTERCHANGEABLE
WASHER,FLAT
50107
4030-01-070-9806INTERCHANGEABLE
THIMBLE,ROPE
50107
5930-01-400-4171INTERCHANGEABLE
SWITCH,PULL
50107
5340-01-505-0021INTERCHANGEABLE
CLAMP,LOOP
50107
4810-01-524-6704INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
50107
4010-01-549-3800INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
50107

Frequently Asked Questions

What is NSN 4320-01-434-3003?

NSN 4320-01-434-3003 is a Seal Assembly,shaft,spring Loade, manufactured by A W Chesterton Co Div Sealing Device Division, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-434-3003?

NSN 4320-01-434-3003 has 1 cross-referenced part number: 50107 (A W Chesterton Co Div Sealing Device Division).

What NSN replaces 4320-01-434-3003?

There are 7 known substitutes for 4320-01-434-3003: 2825-00-317-4329, 5310-00-618-0475, 4030-01-070-9806 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50107?

Key specifications for 50107: End Item Identification: PUMP, ROTARY 4320-01-132-7141 ABOARD 378 FT WHEC COAST GUARD VESSELS FT; General Characteristics Item Description: SELF ALIGNING STATIONARY UNIT ENGINEERED TO OPERATE AGAINST ROTATING SEAL UNITS; FLEXING FACE IS FREE TO ADJUST AUTOMATICALLY TO A RIGHT ANGLE FROM THE SHAFT; AVAILABLE WITH 316 STAINLESS STEEL HOLDER AND SILICON CARBIDE OR ALUMINA CERAMIC FACE AND TUNGSTEN CARBIDE PLATED STAINLESS STEEL FACE; 1-1/4 IN INSIDE DIAMETER 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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