The Nipple,tube, cataloged under National Stock Number 4730-00-511-8001, 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 Mueller Brass Co.. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-511-8001 |
| Primary Part Number | A8431 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mueller Brass Co. |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Nominal Overall Length | 1.844 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Style Designator | FLARED AND FLARELESS W/ CENTER WRENCHING FACILITY |
| Thread Pitch Diameters | +0.8272 TO 0.8304 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES SECOND END IN |
| Leg Length | 0.500 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.000 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Seat Angle | 30.0 DEGREES FIRST END |
| Thread Class | 2A SECOND END A |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL OVERALL |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNF SECOND END |
| 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 |
|---|---|
| A8431 PRIMARY | Mueller Brass Co. (USA) |
NSN 4730-00-511-8001 is a Nipple,tube, manufactured by Mueller Brass Co., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-511-8001 has 1 manufacturer part number on file: A8431 (Mueller Brass Co.).
Key specifications for A8431: Connection Style: FLARED (TUBE) FIRST END; Connection Style: FLARELESS (TUBE) SECOND END; Nominal Overall Length: 1.844 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST END. 20 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.