PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

545305Seal Assembly,shaft,spring Loade

Trillium Pumps Usa, Inc. · NSN 4320-00-172-5702 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-172-5702 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-172-5702. Primary manufacturer part number: 545305.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: CONSISTS OF THE FOLLOWING ITEMS; STATIONARY SEAL 1; ROTARY SEAL 1; SPRING 1; SEAT 1; SPACER 1; 1.860 IN. OD; 1.295 IN. ID; 2.900 IN. ASSEMBLED LG IN
  • 2 verified cross-references
  • Primary manufacturer: Trillium Pumps 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 4320-00-172-5702, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Trillium Pumps Usa, Inc.. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-172-5702
Primary Part Number545305
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerTrillium Pumps Usa, Inc.
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF THE FOLLOWING ITEMS; STATIONARY SEAL 1; ROTARY SEAL 1; SPRING 1; SEAT 1; SPACER 1; 1.860 IN. OD; 1.295 IN. ID; 2.900 IN. ASSEMBLED LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-286-6830252 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5998-01-109-8169545240G02 INTERCHANGEABLE
Circuit Card Assembly
L3harris Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
545305 PRIMARY Trillium Pumps Usa, Inc. (USA)
545635 Trillium Pumps Usa, Inc. (USA)
Related Parts
5330-00-286-6830INTERCHANGEABLE
SEAL,PLAIN ENCASED
252
5998-01-109-8169INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
545240G02

Frequently Asked Questions

What is NSN 4320-00-172-5702?

NSN 4320-00-172-5702 is a Seal Assembly,shaft,spring Loade, manufactured by Trillium Pumps Usa, Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-172-5702?

NSN 4320-00-172-5702 has 2 cross-referenced part numbers: 545305 (Trillium Pumps Usa, Inc.), 545635 (Trillium Pumps Usa, Inc.).

What NSN replaces 4320-00-172-5702?

There are 2 known substitutes for 4320-00-172-5702: 5330-00-286-6830, 5998-01-109-8169. Verify interchangeability with system specifications before substitution.

What are the specifications of 545305?

Key specifications for 545305: General Characteristics Item Description: CONSISTS OF THE FOLLOWING ITEMS; STATIONARY SEAL 1; ROTARY SEAL 1; SPRING 1; SEAT 1; SPACER 1; 1.860 IN. OD; 1.295 IN. ID; 2.900 IN. ASSEMBLED LG IN. 1 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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