The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-200-7975, 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 Raytheon Company. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-200-7975 |
| Primary Part Number | 76Z2638-2 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE BODY |
| Connection Style | RAISED ALL ENDS |
| Bolt Circle Nominal Diameter | 2.300 INCHES IN |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | FLANGE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Bolt Hole Nominal Diameter | 0.222 INCHES IN |
| Leg Length | 1.512 INCHES NOMINAL IN |
| Basic Shape Style | ROUND FIRST FLUID END CONNECTION |
| Nominal Outside Diameter | 2.850 INCHES IN |
| Bolt Hole Quantity | 6 |
| Surface Treatment | PASSIVATE BODY |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Raised Face Nominal Diameter | 1.622 INCHES IN |
| Raised Face Nominal Height | 1.512 INCHES IN |
| Nominal Thickness | 0.100 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 |
|---|---|
| AE99545G | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 76Z2638-2 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| 76Z2638 | D/9 Drawing number reference only Hughes Missile Systems Co San Diego |
| 76Z2638-2 | 3/9 Design control — primary reference Hughes Missile Systems Co San Diego |
NSN 4730-01-200-7975 is a Coupling Half,quick Disconnect, manufactured by Raytheon Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-200-7975 has 2 manufacturer part numbers on file: AE99545G (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 76Z2638-2 (Raytheon Company).
Key specifications for 76Z2638-2: Surface Treatment Document and Classification: QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE BODY; Connection Style: RAISED ALL ENDS; Bolt Circle Nominal Diameter: 2.300 INCHES IN; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS. 18 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.