PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SD-25Adapter,straight,pipe to Hose

Dixon Valve & Coupling Company, Llc Div Dixon Fire · NSN 4730-01-440-1846 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-440-1846 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-440-1846. Primary manufacturer part number: SD-25.
Features
  • Adapter,straight,pipe to Hose — FSC 4730
  • Nominal Thread Size: 2.500 INCHES FIRST END IN
  • Material: STEEL NUT
  • Furnished Items and Quantity: 1 PREFORMED PACKING
  • Connection Type: UNTHREADED EXTERNAL HOSE SECOND END
  • Surface Treatment: ANODIZE NUT
  • Material: COPPER ALLOY BODY
  • Nominal Overall Length: 12.000 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Nut construction
General Description

The Adapter,straight,pipe to Hose, cataloged under National Stock Number 4730-01-440-1846, 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 Dixon Valve & Coupling Company, Llc Div Dixon Fire. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-440-1846
Primary Part NumberSD-25
Item NameAdapter,straight,pipe to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDixon Valve & Coupling Company, Llc Div Dixon Fire
StatusACTIVE
Nominal Thread Size2.500 INCHES FIRST END IN
MaterialSTEEL NUT
Furnished Items and Quantity1 PREFORMED PACKING
Connection TypeUNTHREADED EXTERNAL HOSE SECOND END
Surface TreatmentANODIZE NUT
MaterialCOPPER ALLOY BODY
Nominal Overall Length12.000 INCHES IN
Connection TypeTHREADED INTERNAL PIPE FIRST END
Media for Which DesignedWATER SINGLE RESPONSE
Connection StylePLAIN (PIPE) FIRST END
Connection StyleKNURLED (HOSE) SECOND END
Nominal Inside Diameter Hose Accommodated2.000 INCHES SECOND END IN
Thread Series DesignatorNPSM FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4440-01-320-1569 INTERCHANGEABLE
Dehydrator Unit,nonreactivating
7035-01-733-2490SD25 INTERCHANGEABLE
Docking Station
Dell Marketing L.p.
Cross-Reference Index
Part NumberManufacturer
8837323-01 Drs Environmental Systems Inc (USA)
8837319 Warner Robins Air Logistics Center (USA)
SD-25 PRIMARY Dixon Valve & Coupling Company, Llc Div Dixon Fire (USA)
8837323-01 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
8837323-01 PRIMARY Hdt Expeditionary Systems Inc (USA)
Related Parts
4440-01-320-1569INTERCHANGEABLE
DEHYDRATOR UNIT,NONREACTIVATING
7035-01-733-2490INTERCHANGEABLE
DOCKING STATION
SD25

Frequently Asked Questions

What is NSN 4730-01-440-1846?

NSN 4730-01-440-1846 is a Adapter,straight,pipe to Hose, manufactured by Dixon Valve & Coupling Company, Llc Div Dixon Fire, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-440-1846?

NSN 4730-01-440-1846 has 5 cross-referenced part numbers: 8837323-01 (Drs Environmental Systems Inc), 8837319 (Warner Robins Air Logistics Center), SD-25 (Dixon Valve & Coupling Company, Llc Div Dixon Fire), 8837323-01 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 8837323-01 (Hdt Expeditionary Systems Inc).

What NSN replaces 4730-01-440-1846?

There are 2 known substitutes for 4730-01-440-1846: 4440-01-320-1569, 7035-01-733-2490. Verify interchangeability with system specifications before substitution.

What are the specifications of SD-25?

Key specifications for SD-25: Nominal Thread Size: 2.500 INCHES FIRST END IN; Material: STEEL NUT; Furnished Items and Quantity: 1 PREFORMED PACKING; Connection Type: UNTHREADED EXTERNAL HOSE SECOND END. 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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