The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-268-5338, 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 Dixon Valve & Coupling Company, Llc Div Dixon Fire. Government technical data includes 9 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-268-5338 |
| Primary Part Number | 300-A-SS |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dixon Valve & Coupling Company, Llc Div Dixon Fire |
| Status | ACTIVE |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Quick Disconnect Nominal Size | 2.875 INCHES ALL ENDS IN |
| Nominal Thread Size | 3.000 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 300A | Ritepro Corp (CAN) |
| 300-A-SS PRIMARY | Dixon Valve & Coupling Company, Llc Div Dixon Fire (USA) |
| Reference | Meaning |
|---|---|
| MD 21620 | 5/9 Secondary reference Dixon Valve & Coupling Company, Llc Div Dixon Fire |
| 300-A-SS | 5/9 Secondary reference Dvcc, Llc |
| 300A | 5/9 Secondary reference Dvcc, Llc |
| 633-A-3IN-SS | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 1D96770PK-001 | 1/2 Source control — Government-approved source U.S. Government activity |
| 1D96770PK | D/9 Drawing number reference only U.S. Government activity |
| 633-A-3IN-SS | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-268-5338 is a Coupling Half,quick Disconnect, manufactured by Dixon Valve & Coupling Company, Llc Div Dixon Fire, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-268-5338 has 2 manufacturer part numbers on file: 300A (Ritepro Corp), 300-A-SS (Dixon Valve & Coupling Company, Llc Div Dixon Fire).
Key specifications for 300-A-SS: Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END; Style Designator: MALE COUPLING HALF. 9 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.