PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PK52Ring,retaining

Wisconsin Motors, Llc · NSN 5325-00-143-6669 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-143-6669 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-143-6669. Primary manufacturer part number: PK52.
Features
  • Ring,retaining — FSC 5325
  • Inside Diameter: 0.749 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: ROUND
  • Material: STEEL
  • Usage Design: INTERNAL
  • Outside Diameter: 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
  • Ring Style: HOOKED
  • Material Diameter: 0.063 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-143-6669, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-143-6669
Primary Part NumberPK52
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusCANCELLED
Inside Diameter0.749 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
Cross-Sectional Shape StyleROUND
MaterialSTEEL
Usage DesignINTERNAL
Outside Diameter0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
Ring StyleHOOKED
Material Diameter0.063 INCHES NOMINAL IN
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5120-01-516-452290106 INTERCHANGEABLE
Knife,putty
Warner Tool Co., Inc. Dba Warner Tool Co Inc
Cross-Reference Index
Part NumberManufacturer
PK 52 Zf Industrieantriebe Witten Gmbh (DEU)
PK52 PRIMARY Wisconsin Motors, Llc (USA)
1021-364 Szemco Inc (USA)
PK52 Gardner Denver Inc. (USA)
Related Parts
5120-01-516-4522INTERCHANGEABLE
KNIFE,PUTTY
90106

Frequently Asked Questions

What is NSN 5325-00-143-6669?

NSN 5325-00-143-6669 is a Ring,retaining, manufactured by Wisconsin Motors, Llc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-143-6669?

NSN 5325-00-143-6669 has 4 cross-referenced part numbers: PK 52 (Zf Industrieantriebe Witten Gmbh), PK52 (Wisconsin Motors, Llc), 1021-364 (Szemco Inc), PK52 (Gardner Denver Inc.).

What NSN replaces 5325-00-143-6669?

There is 1 known substitute for 5325-00-143-6669: 5120-01-516-4522. Verify interchangeability with system specifications before substitution.

What are the specifications of PK52?

Key specifications for PK52: Inside Diameter: 0.749 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN; Cross-Sectional Shape Style: ROUND; Special Features: 3/4 IN. FROM OUTSIDE RADIUS OF HOOKED END TO TOP OF RING AND 5/16 IN. GAP OPENING IN; Material: STEEL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-143-6669 still in active supply?

NSN 5325-00-143-6669 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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