PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KF20Coupling Half,quick Disconnect

Sanstorm Inc · NSN 4730-00-290-8557 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-290-8557 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-290-8557. Primary manufacturer part number: KF20.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Thread Series Designator: NPT ALL ENDS
  • Quick Disconnect Method: TWO LUG UNIVERSAL ALL ENDS
  • Connection Style: PLAIN ALL ENDS
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
  • Material: COPPER ALLOY AND MAGNESIUM BODY
  • Style Designator: MALE COUPLING HALF
Applications
  • Applications requiring Copper Alloy and Magnesium Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-290-8557, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Sanstorm Inc. Government technical data includes 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-290-8557
Primary Part NumberKF20
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSanstorm Inc
StatusACTIVE
Thread Series DesignatorNPT ALL ENDS
Quick Disconnect MethodTWO LUG UNIVERSAL ALL ENDS
Connection StylePLAIN ALL ENDS
Nominal Thread Size1.250 INCHES ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
MaterialCOPPER ALLOY AND MAGNESIUM BODY
Style DesignatorMALE COUPLING HALF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3120-01-233-1440HE131-0015-0001 INTERCHANGEABLE
Bearing,plain,self-Aligning
Sargent Aerospace & Defense, Llc Dba Kahr Bearings
Cross-Reference Index
Part NumberManufacturer
KF20 PRIMARY Sanstorm Inc (USA)
Related Parts
3120-01-233-1440INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
HE131-0015-0001

Frequently Asked Questions

What is NSN 4730-00-290-8557?

NSN 4730-00-290-8557 is a Coupling Half,quick Disconnect, manufactured by Sanstorm Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-290-8557?

NSN 4730-00-290-8557 has 1 cross-referenced part number: KF20 (Sanstorm Inc).

What NSN replaces 4730-00-290-8557?

There is 1 known substitute for 4730-00-290-8557: 3120-01-233-1440. Verify interchangeability with system specifications before substitution.

What are the specifications of KF20?

Key specifications for KF20: Thread Series Designator: NPT ALL ENDS; Quick Disconnect Method: TWO LUG UNIVERSAL ALL ENDS; Connection Style: PLAIN ALL ENDS; Nominal Thread Size: 1.250 INCHES ALL ENDS IN. 7 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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