PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HK 251Knob

Monroe Engineering Llc Dba Monroe Pmp · NSN 5355-01-462-8440 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-01-462-8440 — this item is cataloged by the U.S. Government under National Stock Number 5355-01-462-8440. Primary manufacturer part number: HK 251.
Features
  • Knob — FSC 5355
  • Inside Diameter: 2.500 INCHES NOMINAL IN
  • Shank Length: 1.000 INCHES NOMINAL IN
  • Shank Style: STRAIGHT
  • Material: IRON CAST
  • Style Designator: CROSS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
  • Thread Quantity Per Inch: 13 RECEPTACLE
Applications
  • Applications requiring Iron Cast construction
General Description

The Knob, cataloged under National Stock Number 5355-01-462-8440, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Monroe Engineering Llc Dba Monroe Pmp. Government technical data includes 15 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5355-01-462-8440
Primary Part NumberHK 251
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerMonroe Engineering Llc Dba Monroe Pmp
StatusCANCELLED
Inside Diameter2.500 INCHES NOMINAL IN
Shank Length1.000 INCHES NOMINAL IN
Shank StyleSTRAIGHT
MaterialIRON CAST
Style DesignatorCROSS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Thread Quantity Per Inch13 RECEPTACLE
Nominal Thread Size0.500 INCHES RECEPTACLE IN
Attachment MethodSCREW ON
Shank Diameter1.125 INCHES NOMINAL IN
Width2.500 INCHES NOMINAL IN
Overall Thickness0.500 INCHES NOMINAL IN
Gripping Surface ConditionSMOOTH
Material TransparencyOPAQUE
Length2.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5305-00-206-4525 INTERCHANGEABLE
Screw,tapping
5815-00-228-6698SC-C-39992-25 INTERCHANGEABLE
Bar,connecting,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3010-00-253-05779577P INTERCHANGEABLE
Coupling,shaft,flexible
Curtiss-Wright Electro-Mechanical Corporation Div Epd
3110-00-293-8997 INTERCHANGEABLE
Cup,tapered Roller Bearing
4320-01-090-077510351 INTERCHANGEABLE
Rotor,pump
Weldon Pump Llc
5977-01-265-5036103-51 INTERCHANGEABLE
Holder Assembly,electrical Conta
Prestolite Electric Inc
5940-01-441-521710351 INTERCHANGEABLE
Terminal,stud
Munters Corporation Dba Munters Des Champs Products Div Cargocaire
7510-01-495-069809900 INTERCHANGEABLE
Binder,loose-Leaf
S P Richards Inc Dba Best Office Supply Services
5315-01-496-30621035-1 INTERCHANGEABLE
Pin,straight,headless
Tru-Hitch, Inc.
2590-01-587-300410351 INTERCHANGEABLE
Bracket,vehicular Components
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
HK 251 Monroe Engineering Llc Dba Monroe Pmp (USA)
10351 Siewek Tool Co Inc (USA)
Related Parts
5305-00-206-4525INTERCHANGEABLE
SCREW,TAPPING
5815-00-228-6698INTERCHANGEABLE
BAR,CONNECTING,TELETYPEWRITER
SC-C-39992-25
3010-00-253-0577INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
9577P
3110-00-293-8997INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
4320-01-090-0775INTERCHANGEABLE
ROTOR,PUMP
10351
5977-01-265-5036INTERCHANGEABLE
HOLDER ASSEMBLY,ELECTRICAL CONTA
103-51
5940-01-441-5217INTERCHANGEABLE
TERMINAL,STUD
10351
7510-01-495-0698INTERCHANGEABLE
BINDER,LOOSE-LEAF
09900
5315-01-496-3062INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
1035-1
2590-01-587-3004INTERCHANGEABLE
BRACKET,VEHICULAR COMPONENTS
10351

Frequently Asked Questions

What is NSN 5355-01-462-8440?

NSN 5355-01-462-8440 is a Knob, manufactured by Monroe Engineering Llc Dba Monroe Pmp, classified under FSC 5355 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5355-01-462-8440?

NSN 5355-01-462-8440 has 2 cross-referenced part numbers: HK 251 (Monroe Engineering Llc Dba Monroe Pmp), 10351 (Siewek Tool Co Inc).

What NSN replaces 5355-01-462-8440?

There are 10 known substitutes for 5355-01-462-8440: 5305-00-206-4525, 5815-00-228-6698, 3010-00-253-0577 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HK 251?

Key specifications for HK 251: Inside Diameter: 2.500 INCHES NOMINAL IN; Shank Length: 1.000 INCHES NOMINAL IN; Shank Style: STRAIGHT; Material: IRON CAST. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5355-01-462-8440 still in active supply?

NSN 5355-01-462-8440 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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