PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-1638-25Seal Assembly,shaft,spring Loade

Rexnord Industries, Llc Div Aerospace Solutions Downers Grove · NSN 4320-00-863-2418 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-863-2418 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-863-2418. Primary manufacturer part number: 1-1638-25.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: CRES AND SYNTHETIC RUBBER; 2.253 IN. OD; 1.562 IN. ID; 0.578 IN. MIN 0.660 IN. MAX H; CONSISTS OF 1 SEAL ASSY,1 SPRING AND 1 RETAINER IN
  • 5 verified cross-references
  • Primary manufacturer: Rexnord Industries, Llc Div Aerospace Solutions Downers Grove
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 4320-00-863-2418, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Rexnord Industries, Llc Div Aerospace Solutions Downers Grove. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-863-2418
Primary Part Number1-1638-25
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRexnord Industries, Llc Div Aerospace Solutions Downers Grove
StatusACTIVE
General Characteristics Item DescriptionCRES AND SYNTHETIC RUBBER; 2.253 IN. OD; 1.562 IN. ID; 0.578 IN. MIN 0.660 IN. MAX H; CONSISTS OF 1 SEAL ASSY,1 SPRING AND 1 RETAINER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-314-3543106-32ALT1PC99 INTERCHANGEABLE
Washer,shouldered
The Dewey Electronics Corporation Div Pitometer Log Division
6515-00-800-207000-320 INTERCHANGEABLE
Adapter,universal,tracheal Anest
Anesthesia Associates, Inc Div Ainca
6625-00-982-2154 INTERCHANGEABLE
Ammeter
5962-01-041-3783 INTERCHANGEABLE
Microcircuit,digital
4320-01-248-5211 INTERCHANGEABLE
Housing,liquid Pump
6505-01-266-4417 INTERCHANGEABLE
Water for Inhalation,sterile
Cross-Reference Index
Part NumberManufacturer
408013 Bosch Automation Technology (USA)
408013 Kline Manufacturing Co Inc (USA)
1-1638-25 PRIMARY Rexnord Industries, Llc Div Aerospace Solutions Downers Grove (USA)
00320 Kline Manufacturing Co Inc (USA)
AAB00320 Kline Manufacturing Co Inc (USA)
Related Parts
5310-00-314-3543INTERCHANGEABLE
WASHER,SHOULDERED
106-32ALT1PC99
6515-00-800-2070INTERCHANGEABLE
ADAPTER,UNIVERSAL,TRACHEAL ANEST
00-320
6625-00-982-2154INTERCHANGEABLE
AMMETER
5962-01-041-3783INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
4320-01-248-5211INTERCHANGEABLE
HOUSING,LIQUID PUMP
6505-01-266-4417INTERCHANGEABLE
WATER FOR INHALATION,STERILE

Frequently Asked Questions

What is NSN 4320-00-863-2418?

NSN 4320-00-863-2418 is a Seal Assembly,shaft,spring Loade, manufactured by Rexnord Industries, Llc Div Aerospace Solutions Downers Grove, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-863-2418?

NSN 4320-00-863-2418 has 5 cross-referenced part numbers: 408013 (Bosch Automation Technology), 408013 (Kline Manufacturing Co Inc), 1-1638-25 (Rexnord Industries, Llc Div Aerospace Solutions Downers Grove), 00320 (Kline Manufacturing Co Inc), AAB00320 (Kline Manufacturing Co Inc).

What NSN replaces 4320-00-863-2418?

There are 6 known substitutes for 4320-00-863-2418: 5310-00-314-3543, 6515-00-800-2070, 6625-00-982-2154 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-1638-25?

Key specifications for 1-1638-25: General Characteristics Item Description: CRES AND SYNTHETIC RUBBER; 2.253 IN. OD; 1.562 IN. ID; 0.578 IN. MIN 0.660 IN. MAX H; CONSISTS OF 1 SEAL ASSY,1 SPRING AND 1 RETAINER IN; End Item Identification: GRUMMAN AEROSPACE A-10 AIRCRAFT. 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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