PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-85Coupling Half,quick Disconnect

Tuthill Corp Hansen Coupling Div · NSN 4730-01-218-6690 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-218-6690 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-218-6690. Primary manufacturer part number: B-85.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Quick Disconnect Method: PUSH-PULL ALL ENDS
  • Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
  • Connection Style: PLAIN ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Style Designator: MALE COUPLING HALF
  • Material: COPPER ALLOY BODY
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-218-6690, 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 Tuthill Corp Hansen Coupling Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN4730-01-218-6690
Primary Part NumberB-85
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTuthill Corp Hansen Coupling Div
StatusACTIVE
Quick Disconnect MethodPUSH-PULL ALL ENDS
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Connection StylePLAIN ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Style DesignatorMALE COUPLING HALF
MaterialCOPPER ALLOY BODY
Nominal Thread Size0.500 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1680-00-065-22094646 INTERCHANGEABLE
Cap,pressure Relief
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
3030-00-246-0194 INTERCHANGEABLE
Belts,v,matched Set
5995-00-260-46024646 INTERCHANGEABLE
Cable Assembly,grounding
Eaton Corporation Dba Eaton Inoac
5340-00-286-40841385 INTERCHANGEABLE
Bumper
Kirkhill, Inc. Dba Kirkhill Inc
4410-00-318-7435S5103-941007PC33 INTERCHANGEABLE
Box,stuffing
Naval Ship Systems Command
5330-00-349-6622B85 INTERCHANGEABLE
Gasket
Wildfire Pacific Inc
5940-00-502-0410 INTERCHANGEABLE
Terminal,lug
3030-00-529-0472 INTERCHANGEABLE
Belt,v
3030-00-541-4984 INTERCHANGEABLE
Belts,v,matched Set
5365-00-680-92821657047-2 INTERCHANGEABLE
Shim
Designatronics Incorporated Div Sterling Instruments Div
Cross-Reference Index
Part NumberManufacturer
B-85 PRIMARY Tuthill Corp Hansen Coupling Div (USA)
4646 L and S Industries Inc
15599237 General Motors Llc Dba General Motors Llc (USA)
15599237 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
Related Parts
1680-00-065-2209INTERCHANGEABLE
CAP,PRESSURE RELIEF
4646
3030-00-246-0194INTERCHANGEABLE
BELTS,V,MATCHED SET
5995-00-260-4602INTERCHANGEABLE
CABLE ASSEMBLY,GROUNDING
4646
5340-00-286-4084INTERCHANGEABLE
BUMPER
1385
4410-00-318-7435INTERCHANGEABLE
BOX,STUFFING
S5103-941007PC33
5330-00-349-6622INTERCHANGEABLE
GASKET
B85
5940-00-502-0410INTERCHANGEABLE
TERMINAL,LUG
3030-00-529-0472INTERCHANGEABLE
BELT,V
3030-00-541-4984INTERCHANGEABLE
BELTS,V,MATCHED SET
5365-00-680-9282INTERCHANGEABLE
SHIM
1657047-2
4130-00-683-8961INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
B85
5950-00-802-5759INTERCHANGEABLE
COIL,RADIO FREQUENCY
4646

Frequently Asked Questions

What is NSN 4730-01-218-6690?

NSN 4730-01-218-6690 is a Coupling Half,quick Disconnect, manufactured by Tuthill Corp Hansen Coupling Div, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-218-6690?

NSN 4730-01-218-6690 has 4 cross-referenced part numbers: B-85 (Tuthill Corp Hansen Coupling Div), 4646 (L and S Industries Inc), 15599237 (General Motors Llc Dba General Motors Llc), 15599237 (General Motors Corp Chevrolet Motor Div Special Products Dept).

What NSN replaces 4730-01-218-6690?

There are 12 known substitutes for 4730-01-218-6690: 1680-00-065-2209, 3030-00-246-0194, 5995-00-260-4602 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-85?

Key specifications for B-85: Quick Disconnect Method: PUSH-PULL ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Connection Style: PLAIN ALL ENDS. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com