The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-171-4440, 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 New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-171-4440 |
| Primary Part Number | L-102-4 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc |
| Status | ACTIVE |
| Surface Treatment | PASSIVATE BODY |
| Leg Length | 0.375 INCHES NOMINAL IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Thread Class | 3A ALL ENDS A |
| Connection Style | FLARED ALL ENDS |
| Features Provided | SELF-SEALING |
| Style Designator | MALE COUPLING HALF |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| L-102-4 | New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc (USA) |
| 4730PL0976180 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 5189586-001 | Naval Sea Systems Command (USA) |
| 5189586 | Naval Sea Systems Command (USA) |
NSN 4730-01-171-4440 is a Coupling Half,quick Disconnect, manufactured by New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-171-4440 has 4 cross-referenced part numbers: L-102-4 (New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc), 4730PL0976180 (Jednolity Indeks Materialowy - Uniform Material Index), 5189586-001 (Naval Sea Systems Command), 5189586 (Naval Sea Systems Command).
There are 5 known substitutes for 4730-01-171-4440: 2520-00-162-9565, 5340-00-479-4530, 5310-01-080-1747 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for L-102-4: Surface Treatment: PASSIVATE BODY; Leg Length: 0.375 INCHES NOMINAL IN; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. 16 total characteristics are documented in the Federal Logistics Information System.