PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S643Ring,retaining

Palfinger Marine Usa, Llc · NSN 5325-01-557-9361 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-557-9361 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-557-9361. Primary manufacturer part number: S643.
Features
  • Ring,retaining — FSC 5325
  • 1 verified cross-reference
  • Primary manufacturer: Palfinger Marine Usa, Llc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-557-9361, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Palfinger Marine Usa, Llc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 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)
ManufacturersPalfinger Marine Usa, Llc (CAGE 63504)
Technical Specifications
ParameterValue
NSN5325-01-557-9361
Primary Part NumberS643
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerPalfinger Marine Usa, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4310-00-060-4586 INTERCHANGEABLE
Ring,piston
5940-00-115-2676MS20659-143 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
3940-00-235-84534080517 INTERCHANGEABLE
Link,hoisting
Textron Aviation Inc
5305-00-639-8085S643 INTERCHANGEABLE
Screw,cap,socket Head
Bae Systems Land & Armaments L.p.
5365-01-036-7243 INTERCHANGEABLE
Ring,connecting,round
5365-01-056-834111153730 INTERCHANGEABLE
Ring,connecting,round
Us Army Aviation and Missile Command
5365-01-227-9457521-4788614 ITEM 114 INTERCHANGEABLE
Ring,connecting,round
Naval Ship Systems Command
4730-01-251-221913228E2595-67 INTERCHANGEABLE
Plug,pipe
Cecom Lr Center
5360-01-481-9878S-643 INTERCHANGEABLE
Spring,helical,extension
Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
Cross-Reference Index
Part NumberManufacturer
S643 PRIMARY Palfinger Marine Usa, Llc (USA)
Related Parts
4310-00-060-4586INTERCHANGEABLE
RING,PISTON
5940-00-115-2676INTERCHANGEABLE
TERMINAL,LUG
MS20659-143
3940-00-235-8453INTERCHANGEABLE
LINK,HOISTING
4080517
5305-00-639-8085INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
S643
5365-01-036-7243INTERCHANGEABLE
RING,CONNECTING,ROUND
5365-01-056-8341INTERCHANGEABLE
RING,CONNECTING,ROUND
11153730
5365-01-227-9457INTERCHANGEABLE
RING,CONNECTING,ROUND
521-4788614 ITEM 114
4730-01-251-2219INTERCHANGEABLE
PLUG,PIPE
13228E2595-67
5360-01-481-9878INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
S-643

Frequently Asked Questions

What is NSN 5325-01-557-9361?

NSN 5325-01-557-9361 is a Ring,retaining, manufactured by Palfinger Marine Usa, Llc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-557-9361?

NSN 5325-01-557-9361 has 1 cross-referenced part number: S643 (Palfinger Marine Usa, Llc).

What NSN replaces 5325-01-557-9361?

There are 9 known substitutes for 5325-01-557-9361: 4310-00-060-4586, 5940-00-115-2676, 3940-00-235-8453 and 6 more. Verify interchangeability with system specifications before substitution.

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