The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-128-9143, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is American Turbo Systems Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-128-9143 |
| Primary Part Number | 101017 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | American Turbo Systems Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35B FED SPEC SINGLE TREATMENT RESPONSE BODY |
| Connection Style | RAISED ALL ENDS |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | FLANGE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Quick Disconnect Nominal Size | 3.344 INCHES ALL ENDS IN |
| Leg Length | 0.365 INCHES MAXIMUM IN |
| Basic Shape Style | ROUND W/OUT BOLT HOLES FIRST FLUID END CONNECTION |
| Nominal Outside Diameter | 4.277 INCHES IN |
| Surface Treatment | PASSIVATE BODY |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Raised Face Nominal Diameter | 3.6215 INCHES IN |
| Raised Face Nominal Height | 0.120 INCHES IN |
| Nominal Thickness | 0.835 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 101017 PRIMARY | American Turbo Systems Inc (USA) |
NSN 4730-01-128-9143 is a Coupling Half,quick Disconnect, manufactured by American Turbo Systems Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-128-9143 has 1 manufacturer part number on file: 101017 (American Turbo Systems Inc).
5 possible matches (shared part number, not a government interchangeability claim): 5330-01-237-9188, 5905-01-255-8710, 4320-01-288-7392. Verify interchangeability with system specifications before substitution.
Key specifications for 101017: Surface Treatment Document and Classification: QQ-P-35B FED SPEC SINGLE TREATMENT RESPONSE BODY; Connection Style: RAISED ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: FLANGE FIRST FLUID END CONNECTION. 15 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.