The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-291-1591, 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 Naval Inventory Control Point Mechanicsburg. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-291-1591 |
| Primary Part Number | AN816-16BCP |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Nominal Overall Length | 2.219 INCHES IN |
| Criticality Code Justification | ZZZW |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Media for Which Designed | NITROGEN, LIQUID FIRST RESPONSE |
| Media for Which Designed | OXYGEN, LIQUID SECOND RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | ANPT SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| AN816-16BCP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| AN816-16B CP | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AN816-16B | 4/1 Identification reference U.S. Government activity |
NSN 4730-01-291-1591 is a Adapter,straight,pipe to Tube, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-291-1591 has 1 manufacturer part number on file: AN816-16BCP (Naval Inventory Control Point Mechanicsburg).
Key specifications for AN816-16BCP: Nominal Overall Length: 2.219 INCHES IN; Criticality Code Justification: ZZZW; Connection Type: UNTHREADED INTERNAL TUBE FIRST END; Connection Type: THREADED EXTERNAL PIPE SECOND END. 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.