PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-25427Coupling Assembly,quick Disconne

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-897-4885 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-897-4885 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-897-4885. Primary manufacturer part number: MIL-DTL-25427.
Features
  • Coupling Assembly,quick Disconne — FSC 4730
  • Thread Class: 3A FIRST FLUID END CONNECTION A
  • Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
  • Thread Quantity Per Inch: 12 FIRST FLUID END CONNECTION
  • Thread Quantity Per Inch: 12 SECOND FLUID END CONNECTION
  • Nominal Thread Size: 1.625 INCHES SECOND FLUID END CONNECTION IN
  • Operating Pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: COUPLING ASSEMBLY
Applications
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-00-897-4885, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, 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
NSN4730-00-897-4885
Primary Part NumberMIL-DTL-25427
Item NameCoupling Assembly,quick Disconne
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Class3A FIRST FLUID END CONNECTION A
Connection TypeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
Thread Quantity Per Inch12 FIRST FLUID END CONNECTION
Thread Quantity Per Inch12 SECOND FLUID END CONNECTION
Nominal Thread Size1.625 INCHES SECOND FLUID END CONNECTION IN
Operating Pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorCOUPLING ASSEMBLY
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) FIRST FLUID END CONNECTION
Surface TreatmentANODIZE OVERALL
MaterialALUMINUM ALLOY OVERALL
Seat Angle12.0 DEGREES
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST FLUID END CONNECTION IN
Specification/standard Data96906-MS24334 GOVERNMENT STANDARD
Nominal Thread Size1.625 INCHES FIRST FLUID END CONNECTION IN
Features ProvidedSELF-SEALING
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) SECOND FLUID END CONNECTION
Connection TypeTHREADED INTERNAL BOSS SECOND FLUID END CONNECTION
Quick Disconnect MethodTWIST-LOCK ALL ENDS
Connection StyleINVERTED FLARE FIRST FLUID END CONNECTION
Leg Length0.984 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-564-2688140-8D INTERCHANGEABLE
Coupling Assembly,self-Sealing
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
4730-00-595-0759157-4D INTERCHANGEABLE
Coupling Assembly,self-Sealing
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
4730-00-684-4718 INTERCHANGEABLE
Coupling Assembly,quick Disconne
4730-00-684-7199 INTERCHANGEABLE
Coupling Assembly,quick Disconne
4730-00-756-9499 INTERCHANGEABLE
Coupling Assembly,quick Disconne
4730-00-795-2837 INTERCHANGEABLE
Flange,pipe
4730-00-795-2838 INTERCHANGEABLE
Flange,pipe
4730-00-812-4150 INTERCHANGEABLE
Flange,pipe
4730-00-812-6916 INTERCHANGEABLE
Flange,pipe
4730-00-815-6491 INTERCHANGEABLE
Coupling Assembly,quick Disconne
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-25427 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS24334-20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS24334-20 Bowmar Llc Dba Bowmar Instrument Corp (USA)
320000-20D Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
MS24334-20 Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA)
MIL-C-25427 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-564-2688INTERCHANGEABLE
COUPLING ASSEMBLY,SELF-SEALING
140-8D
4730-00-595-0759INTERCHANGEABLE
COUPLING ASSEMBLY,SELF-SEALING
157-4D
4730-00-684-4718INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
4730-00-684-7199INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
4730-00-756-9499INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
4730-00-795-2837INTERCHANGEABLE
FLANGE,PIPE
4730-00-795-2838INTERCHANGEABLE
FLANGE,PIPE
4730-00-812-4150INTERCHANGEABLE
FLANGE,PIPE
4730-00-812-6916INTERCHANGEABLE
FLANGE,PIPE
4730-00-815-6491INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
4730-00-826-8877INTERCHANGEABLE
FLANGE,PIPE
4730-00-849-8824INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE

Frequently Asked Questions

What is NSN 4730-00-897-4885?

NSN 4730-00-897-4885 is a Coupling Assembly,quick Disconne, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-897-4885?

NSN 4730-00-897-4885 has 6 cross-referenced part numbers: MIL-DTL-25427 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS24334-20 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS24334-20 (Bowmar Llc Dba Bowmar Instrument Corp), 320000-20D (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), MS24334-20 (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging) and 1 more.

What NSN replaces 4730-00-897-4885?

There are 12 known substitutes for 4730-00-897-4885: 4730-00-564-2688, 4730-00-595-0759, 4730-00-684-4718 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-25427?

Key specifications for MIL-DTL-25427: Thread Class: 3A FIRST FLUID END CONNECTION A; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Thread Quantity Per Inch: 12 FIRST FLUID END CONNECTION; Thread Quantity Per Inch: 12 SECOND FLUID END CONNECTION. 21 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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