The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-451-8529, 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 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-451-8529 |
| Primary Part Number | 4730NR0045 ITEM NO. 01 |
| Item Name | Coupling Assembly,quick Disconne |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 PREFORMED PACKING |
| Connection Style | GROOVED FIRST FLUID END CONNECTION |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | COUPLING ASSEMBLY |
| Nominal Outside Diameter Tube Accommodated | 0.125 INCHES FIRST FLUID END CONNECTION IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 200.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 40.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | BRASS OVERALL |
| Quick Disconnect Method | PUSH-PULL 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 |
|---|---|
| 4730NR0045 ITEM NO. 01 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| 62PM-2 | 3/2 Design control — primary reference U.S. Government activity |
| 4730NR0045 | D/9 Drawing number reference only Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
NSN 4730-01-451-8529 is a Coupling Assembly,quick Disconne, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-451-8529 has 1 manufacturer part number on file: 4730NR0045 ITEM NO. 01 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-451-8753, 4710-01-451-8764. Verify interchangeability with system specifications before substitution.
Key specifications for 4730NR0045 ITEM NO. 01: Furnished Items and Quantity: 2 PREFORMED PACKING; Connection Style: GROOVED FIRST FLUID END CONNECTION; Connection Type: UNTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: COUPLING ASSEMBLY. 10 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.