PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

644-8Rod,threaded End

American Coleman Company, the Dba Metro Crown International · NSN 5306-01-203-9050 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-203-9050 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-203-9050. Primary manufacturer part number: 644-8.
Features
  • Rod,threaded End — FSC 5306
  • Thread Length: 1.750 INCHES NOMINAL NUT THREAD A IN
  • Thread Class: 3A NUT THREAD A A
  • Thread Series Designator: UN NUT THREAD B
  • Thread Series Designator: UN NUT THREAD A
  • Nominal Thread Size: 1.000 INCHES NUT THREAD B IN
  • Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE
  • Thread Direction: RIGHT-HAND NUT THREAD B
Applications
  • Applications requiring Steel Comp 1018 construction
General Description

The Rod,threaded End, cataloged under National Stock Number 5306-01-203-9050, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American Coleman Company, the Dba Metro Crown International. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-203-9050
Primary Part Number644-8
Item NameRod,threaded End
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerAmerican Coleman Company, the Dba Metro Crown International
StatusACTIVE
Thread Length1.750 INCHES NOMINAL NUT THREAD A IN
Thread Class3A NUT THREAD A A
Thread Series DesignatorUN NUT THREAD B
Thread Series DesignatorUN NUT THREAD A
Nominal Thread Size1.000 INCHES NUT THREAD B IN
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE
Thread DirectionRIGHT-HAND NUT THREAD B
Thread Quantity Per Inch16 NUT THREAD B
MaterialSTEEL COMP 1018
Thread Length1.750 INCHES NOMINAL NUT THREAD B IN
Nominal Thread Size1.000 INCHES NUT THREAD A IN
Thread Class3A NUT THREAD B A
Thread DirectionRIGHT-HAND NUT THREAD A
Thread Quantity Per Inch16 NUT THREAD A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-2491R639-9 INTERCHANGEABLE
Seat,valve
Derbyshire Machine & Tool Co
4730-00-127-88226848 INTERCHANGEABLE
Clamp,hose
Epicor Industries Inc Ideal Div
2815-00-146-7546 INTERCHANGEABLE
Tube,water
4320-00-364-64461976 INTERCHANGEABLE
Impeller,pump,centrifugal
Brinkley Technology Group Llc Dba Hercules Manufacturing
4730-00-419-30861115950-1 INTERCHANGEABLE
Clamp,hose
Us Army Aviation and Missile Command
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5950-00-538-67736448-1 INTERCHANGEABLE
Coil,electrical
Te Connectivity Corporation
5325-00-637-4156 INTERCHANGEABLE
Grommet,nonmetallic
6135-00-812-9039ZM9 INTERCHANGEABLE
Battery,nonrechargeable
Yosemite Investment Inc Dba North American Capacitor Co
6135-00-985-7845003-360013R00 INTERCHANGEABLE
Battery,nonrechargeable
Insitu, Inc.
Cross-Reference Index
Part NumberManufacturer
644-8 American Coleman Company, the Dba Metro Crown International (USA)
Related Parts
4820-00-036-2491INTERCHANGEABLE
SEAT,VALVE
R639-9
4730-00-127-8822INTERCHANGEABLE
CLAMP,HOSE
6848
2815-00-146-7546INTERCHANGEABLE
TUBE,WATER
4320-00-364-6446INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
1976
4730-00-419-3086INTERCHANGEABLE
CLAMP,HOSE
1115950-1
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
5950-00-538-6773INTERCHANGEABLE
COIL,ELECTRICAL
6448-1
5325-00-637-4156INTERCHANGEABLE
GROMMET,NONMETALLIC
6135-00-812-9039INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
ZM9
6135-00-985-7845INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
003-360013R00
5120-01-130-8880INTERCHANGEABLE
WRENCH,TORQUE
6680-01-136-3218INTERCHANGEABLE
DIAPHRAGM,LIQUID SIGHT INDICATOR
6448-13

Frequently Asked Questions

What is NSN 5306-01-203-9050?

NSN 5306-01-203-9050 is a Rod,threaded End, manufactured by American Coleman Company, the Dba Metro Crown International, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-203-9050?

NSN 5306-01-203-9050 has 1 cross-referenced part number: 644-8 (American Coleman Company, the Dba Metro Crown International).

What NSN replaces 5306-01-203-9050?

There are 12 known substitutes for 5306-01-203-9050: 4820-00-036-2491, 4730-00-127-8822, 2815-00-146-7546 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 644-8?

Key specifications for 644-8: Thread Length: 1.750 INCHES NOMINAL NUT THREAD A IN; Thread Class: 3A NUT THREAD A A; Thread Series Designator: UN NUT THREAD B; Thread Series Designator: UN NUT THREAD A. 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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