PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PK50Retainer,check Ball

Wisconsin Motors, Llc · NSN 2805-00-741-0243 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-741-0243 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-741-0243. Primary manufacturer part number: PK50.
Features
  • Retainer,check Ball — FSC 2805
  • General Characteristics Item Description: STEEL;0.625 IN. O/A W IN PREFORMED SHAPE;W/0.296 IN. LG 2 LEGS;0.375 IN. INSIDE DISTANCE BETWEEN 2 LEGS;0.046 IN. MATERIAL THK IN
  • 12 verified cross-references
  • Primary manufacturer: Wisconsin Motors, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Retainer,check Ball, cataloged under National Stock Number 2805-00-741-0243, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-741-0243
Primary Part NumberPK50
Item NameRetainer,check Ball
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusCANCELLED
General Characteristics Item DescriptionSTEEL;0.625 IN. O/A W IN PREFORMED SHAPE;W/0.296 IN. LG 2 LEGS;0.375 IN. INSIDE DISTANCE BETWEEN 2 LEGS;0.046 IN. MATERIAL THK IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-010-00923X330-3-4 INTERCHANGEABLE
Screw,cap,hexagon Head
Garwood/feller Inc Garwood Winch Div
5815-00-065-603304244 INTERCHANGEABLE
Teletypewriter Subassembly
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
5365-00-070-001511554 INTERCHANGEABLE
Ring,spring
Aerosonic Llc
3110-00-114-5990 INTERCHANGEABLE
Bearing,ball,annular
4820-00-135-2316PK50 INTERCHANGEABLE
Parts Kit,check Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5120-00-144-21005120-00-144-2100 INTERCHANGEABLE
Die,eyelet
General Services Administration Federal Supply Service
3010-00-163-239011554 INTERCHANGEABLE
Collar Assembly
Komatsu America Corporation
5310-00-209-0135 INTERCHANGEABLE
Washer,flat
5133-00-232-2865 INTERCHANGEABLE
Drill,twist
5950-00-412-960460905-1 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
PK50 PRIMARY Wisconsin Motors, Llc (USA)
CFR40150 Curtis Dyna-Fog, Ltd. (USA)
JHP33-96 Hollingsworth John R Co (USA)
11-554 Lister Petter Ltd (GBR)
PK50A PRIMARY Wisconsin Motors, Llc (USA)
MPK50A Met-Pro Corporation (USA)
41100K4 Aeroil Products Co Inc (USA)
609051 Aqua-Chem Inc Cleaver-Brooks Div (USA)
4244 D & J Parts Inc (USA)
28713 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
609051 Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA)
4244 L & L Boiler Maintenance Inc (USA)
Related Parts
5305-00-010-0092INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
3X330-3-4
5815-00-065-6033INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
04244
5365-00-070-0015INTERCHANGEABLE
RING,SPRING
11554
3110-00-114-5990INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-00-135-2316INTERCHANGEABLE
PARTS KIT,CHECK VALVE
PK50
5120-00-144-2100INTERCHANGEABLE
DIE,EYELET
5120-00-144-2100
3010-00-163-2390INTERCHANGEABLE
COLLAR ASSEMBLY
11554
5310-00-209-0135INTERCHANGEABLE
WASHER,FLAT
5133-00-232-2865INTERCHANGEABLE
DRILL,TWIST
5950-00-412-9604INTERCHANGEABLE
TRANSFORMER,POWER
60905-1
5820-00-521-1400INTERCHANGEABLE
CODER DISK SEGMENT
SM-B-157524-5
5365-00-597-1323INTERCHANGEABLE
SHIM

Frequently Asked Questions

What is NSN 2805-00-741-0243?

NSN 2805-00-741-0243 is a Retainer,check Ball, manufactured by Wisconsin Motors, Llc, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-741-0243?

NSN 2805-00-741-0243 has 12 cross-referenced part numbers: PK50 (Wisconsin Motors, Llc), CFR40150 (Curtis Dyna-Fog, Ltd.), JHP33-96 (Hollingsworth John R Co), 11-554 (Lister Petter Ltd), PK50A (Wisconsin Motors, Llc) and 7 more.

What NSN replaces 2805-00-741-0243?

There are 12 known substitutes for 2805-00-741-0243: 5305-00-010-0092, 5815-00-065-6033, 5365-00-070-0015 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PK50?

Key specifications for PK50: General Characteristics Item Description: STEEL;0.625 IN. O/A W IN PREFORMED SHAPE;W/0.296 IN. LG 2 LEGS;0.375 IN. INSIDE DISTANCE BETWEEN 2 LEGS;0.046 IN. MATERIAL THK IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-741-0243 still in active supply?

NSN 2805-00-741-0243 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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