The Flange,pipe, cataloged under National Stock Number 4730-01-310-7830, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-310-7830 |
| Primary Part Number | A73541-220L1 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| FSC Application Data | 2 1/2 GAL DESURGER |
| Nominal Pipe Size for Which Designed | 2.500 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 212.0 FAHRENHEIT WATER, SALT DEGF |
| Operating Pressure and Type | 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Criticality Code Justification | ZZZY |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Material Document and Classification | MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 6 |
| Material | COPPER ALLOY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| 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 |
|---|---|
| A73541-220L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 800398J ITEM 3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 800398J ITEM 3 | 5/1 Secondary reference Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
| A73541-220 | 3/1 Design control — primary reference Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
NSN 4730-01-310-7830 is a Flange,pipe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-310-7830 has 2 manufacturer part numbers on file: A73541-220L1 (Naval Inventory Control Point Mechanicsburg), 800398J ITEM 3L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for A73541-220L1: FSC Application Data: 2 1/2 GAL DESURGER; Nominal Pipe Size for Which Designed: 2.500 INCHES IN; Maximum Operating Temp and Media for Which Designed: 212.0 FAHRENHEIT WATER, SALT DEGF; Operating Pressure and Type: 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 11 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.