The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-080-4723, 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 Transdigm Inc Div Adelwiggins Group. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-080-4723 |
| Primary Part Number | D33LA |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED FIRST FLUID END CONNECTION |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | COUPLING ASSEMBLY |
| Material Document and Classification | QQ-A-22516,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST FLUID END CONNECTION IN |
| Leg Length | 0.542 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN |
| Features Provided | SAFETY LOCKING FEATURE |
| Nominal Thread Size | 0.438 INCHES FIRST FLUID END CONNECTION IN |
| Seat Angle | 37.0 DEGREES |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A FIRST FLUID END CONNECTION A |
| Material | ALUMINUM ALLOY OVERALL |
| Quick Disconnect Method | SPRING PUSH-LOCK FIRST FLUID END CONNECTION |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST FLUID END CONNECTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| D33LA PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| A115138-505 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-080-4723 is a Coupling Assembly,quick Disconne, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-080-4723 has 1 manufacturer part number on file: D33LA (Transdigm Inc Div Adelwiggins Group).
Key specifications for D33LA: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED FIRST FLUID END CONNECTION; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: COUPLING ASSEMBLY. 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.