PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61811Plug,machine Thread

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 5365-01-138-8560 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-138-8560 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-138-8560. Primary manufacturer part number: 61811.
Features
  • Plug,machine Thread — FSC 5365
  • Style Designator: PLUG, MACHINE
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Length: 0.219 INCHES NOMINAL EXTERNAL IN
  • Head Height: 0.300 INCHES NOMINAL IN
  • Seat Angle: 45.0 DEGREES
  • Thread Direction: RIGHT-HAND EXTERNAL
  • Nominal Thread Size: 0.5625 INCHES EXTERNAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Plug,machine Thread, cataloged under National Stock Number 5365-01-138-8560, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-138-8560
Primary Part Number61811
Item NamePlug,machine Thread
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Style DesignatorPLUG, MACHINE
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Length0.219 INCHES NOMINAL EXTERNAL IN
Head Height0.300 INCHES NOMINAL IN
Seat Angle45.0 DEGREES
Thread DirectionRIGHT-HAND EXTERNAL
Nominal Thread Size0.5625 INCHES EXTERNAL IN
MaterialSTEEL OVERALL
Thread Series DesignatorUNF EXTERNAL
Thread Class3A EXTERNAL A
Surface TreatmentPASSIVATE OVERALL
Connection StylePLAIN
Surface Treatment Document and ClassificationQQ-P-35,TYPE 1,2,3 OR 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6210-00-544-05381050D10 INTERCHANGEABLE
Light,indicator
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
5815-00-868-8778 INTERCHANGEABLE
Case Assembly
4820-01-190-10306181-1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4330-01-291-1816414 INTERCHANGEABLE
Filter,fluid
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
4320-01-710-77546181-1 INTERCHANGEABLE
Pump Unit,centrifugal
Pacific Design Technologies, Inc. Dba Pacific Design Technologies
Cross-Reference Index
Part NumberManufacturer
61811 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
61811 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
6210-00-544-0538INTERCHANGEABLE
LIGHT,INDICATOR
1050D10
5815-00-868-8778INTERCHANGEABLE
CASE ASSEMBLY
4820-01-190-1030INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
6181-1
4330-01-291-1816INTERCHANGEABLE
FILTER,FLUID
414
4320-01-710-7754INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
6181-1

Frequently Asked Questions

What is NSN 5365-01-138-8560?

NSN 5365-01-138-8560 is a Plug,machine Thread, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-138-8560?

NSN 5365-01-138-8560 has 2 cross-referenced part numbers: 61811 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations), 61811 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 5365-01-138-8560?

There are 5 known substitutes for 5365-01-138-8560: 6210-00-544-0538, 5815-00-868-8778, 4820-01-190-1030 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61811?

Key specifications for 61811: Style Designator: PLUG, MACHINE; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Length: 0.219 INCHES NOMINAL EXTERNAL IN; Head Height: 0.300 INCHES NOMINAL IN. 15 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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