The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-177-1818, 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 Prc-Desoto International, Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-177-1818 |
| Primary Part Number | 221448 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Prc-Desoto International, Inc. |
| Status | CANCELLED |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Surface Treatment | DICHROMATE BODY |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE FIRST FLUID END CONNECTION |
| Quick Disconnect Method | SPRING PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | STEEL BODY |
| Style Designator | MALE COUPLING HALF |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Leg Length | 0.438 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Quick Disconnect Nominal Size | 0.250 INCHES ALL ENDS IN |
| Surface Treatment | DICHROMATE BODY |
| Furnished Items | NIPPLE |
| Features Provided | SELF-SEALING |
| Material | STEEL BODY |
| Style Designator | MALE COUPLING HALF |
| Thread Series Designator | NPT ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 221448 PRIMARY | Prc-Desoto International, Inc. (USA) |
| 3S1441-0 | Bfgoodrich Co the Aerospace Div Engineered Polymer Products (USA) |
| 3S1441-1 | Bfgoodrich Co the Aerospace Div Engineered Polymer Products (USA) |
| 3S1441-3 | Bfgoodrich Co the Aerospace Div Engineered Polymer Products (USA) |
| 221448 | Prc-Desoto Intl Inc (USA) |
| 22683 | Prc-Desoto Intl Inc (USA) |
| 120-27 | Prc-Desoto Intl Inc (USA) |
NSN 4730-00-177-1818 is a Coupling Half,quick Disconnect, manufactured by Prc-Desoto International, Inc., classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-177-1818 has 7 cross-referenced part numbers: 221448 (Prc-Desoto International, Inc.), 3S1441-0 (Bfgoodrich Co the Aerospace Div Engineered Polymer Products), 3S1441-1 (Bfgoodrich Co the Aerospace Div Engineered Polymer Products), 3S1441-3 (Bfgoodrich Co the Aerospace Div Engineered Polymer Products), 221448 (Prc-Desoto Intl Inc) and 2 more.
There are 12 known substitutes for 4730-00-177-1818: 4320-00-147-0296, 4730-00-187-4385, 6685-00-333-6763 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 221448: Nominal Thread Size: 0.250 INCHES ALL ENDS IN; Surface Treatment: DICHROMATE BODY; Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-177-1818 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.