PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D3100MMM04ALA03Coupling Half,quick Disconnect

Hydraflow · NSN 4730-01-721-4355 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-721-4355 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-721-4355. Primary manufacturer part number: D3100MMM04ALA03.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Style Designator: MALE COUPLING HALF
  • Nominal Width Across Flats: 0.688 INCHES IN
  • 2 verified cross-references
  • Primary manufacturer: Hydraflow
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-721-4355, 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 Hydraflow. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN4730-01-721-4355
Primary Part NumberD3100MMM04ALA03
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHydraflow
StatusACTIVE
Style DesignatorMALE COUPLING HALF
Nominal Width Across Flats0.688 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
9150-01-283-0249 INTERCHANGEABLE
Calibrating Oil,standard
Cross-Reference Index
Part NumberManufacturer
D3100MMM04ALA03 PRIMARY Hydraflow (USA)
D3100 Hydraflow (USA)
Related Parts
9150-01-283-0249INTERCHANGEABLE
CALIBRATING OIL,STANDARD

Frequently Asked Questions

What is NSN 4730-01-721-4355?

NSN 4730-01-721-4355 is a Coupling Half,quick Disconnect, manufactured by Hydraflow, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-721-4355?

NSN 4730-01-721-4355 has 2 cross-referenced part numbers: D3100MMM04ALA03 (Hydraflow), D3100 (Hydraflow).

What NSN replaces 4730-01-721-4355?

There is 1 known substitute for 4730-01-721-4355: 9150-01-283-0249. Verify interchangeability with system specifications before substitution.

What are the specifications of D3100MMM04ALA03?

Key specifications for D3100MMM04ALA03: Style Designator: MALE COUPLING HALF; Nominal Width Across Flats: 0.688 INCHES IN. 2 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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