The Union,pipe, cataloged under National Stock Number 4730-01-253-9899, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-253-9899 |
| Primary Part Number | 0505-16-16C |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 PREFORMED PACKING |
| Surface Treatment Document and Classification | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE UNION |
| Connection Style | INVERTED FLARE (PIPE) ALL ENDS |
| Nominal Overall Length | 2.125 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | SCREWED |
| Material Document and Classification | ASTM A276,UNS S31600 ASSN STD SINGLE MATERIAL RESPONSE UNION |
| Seat Type | RECESSED |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Seat Angle | 30.0 DEGREES ALL ENDS |
| Surface Treatment | PASSIVATE UNION |
| Material | STEEL COMP 316 UNION |
| Thread Series Designator | NPSM 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 |
|---|---|
| 0505-16-16C PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 0505-16-16C | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-253-9899 is a Union,pipe, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-253-9899 has 1 manufacturer part number on file: 0505-16-16C (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for 0505-16-16C: Furnished Items and Quantity: 2 PREFORMED PACKING; Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE UNION; Connection Style: INVERTED FLARE (PIPE) ALL ENDS; Nominal Overall Length: 2.125 INCHES IN. 13 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.