PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

440-8843168-84Ring,retaining

Naval Sea Systems Command · NSN 5325-01-720-1072 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-720-1072 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-720-1072. Primary manufacturer part number: 440-8843168-84.
Features
  • Ring,retaining — FSC 5325
  • 5 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-720-1072, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,retaining
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersNaval Sea Systems Command (CAGE 53711); Electric Boat Corporation Div General Dynamics Electric Boat (CAGE 96169)
Technical Specifications
ParameterValue
NSN5325-01-720-1072
Primary Part Number440-8843168-84
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-01-721-0975 INTERCHANGEABLE
Gasket
3130-01-722-7839440-8843168-62 INTERCHANGEABLE
Bearing Unit,plain
Naval Sea Systems Command
5305-01-722-8346 INTERCHANGEABLE
Screw,cap,hexagon Head
5330-01-723-0387440-8843168-53 INTERCHANGEABLE
Gasket
Naval Sea Systems Command
5330-01-723-4873845-4677382-40 INTERCHANGEABLE
Packing Assembly
Naval Sea Systems Command
4820-01-723-5993440-8843168-12 INTERCHANGEABLE
Flange,gland,valve
Naval Sea Systems Command
5305-01-729-2627 INTERCHANGEABLE
Screw,cap,hexagon Head
2040-01-734-6226 INTERCHANGEABLE
Cylinder Assembly,reaction
Cross-Reference Index
Part NumberManufacturer
440-8843168-84 Naval Sea Systems Command (USA)
R4342501-84 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
8843168 Naval Sea Systems Command (USA)
LOA036473-84 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
211028528A Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
5330-01-721-0975INTERCHANGEABLE
GASKET
3130-01-722-7839INTERCHANGEABLE
BEARING UNIT,PLAIN
440-8843168-62
5305-01-722-8346INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5330-01-723-0387INTERCHANGEABLE
GASKET
440-8843168-53
5330-01-723-4873INTERCHANGEABLE
PACKING ASSEMBLY
845-4677382-40
4820-01-723-5993INTERCHANGEABLE
FLANGE,GLAND,VALVE
440-8843168-12
5305-01-729-2627INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
2040-01-734-6226INTERCHANGEABLE
CYLINDER ASSEMBLY,REACTION

Frequently Asked Questions

What is NSN 5325-01-720-1072?

NSN 5325-01-720-1072 is a Ring,retaining, manufactured by Naval Sea Systems Command, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-720-1072?

NSN 5325-01-720-1072 has 5 cross-referenced part numbers: 440-8843168-84 (Naval Sea Systems Command), R4342501-84 (Electric Boat Corporation Div General Dynamics Electric Boat), 8843168 (Naval Sea Systems Command), LOA036473-84 (Electric Boat Corporation Div General Dynamics Electric Boat), 211028528A (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 5325-01-720-1072?

There are 8 known substitutes for 5325-01-720-1072: 5330-01-721-0975, 3130-01-722-7839, 5305-01-722-8346 and 5 more. Verify interchangeability with system specifications before substitution.

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