The Nipple,tube, cataloged under National Stock Number 4730-01-020-7890, 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 A and M Aerospace, Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-020-7890 |
| Primary Part Number | 728179-101 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | A and M Aerospace, Inc. |
| Status | ACTIVE |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Nominal Overall Length | 2.120 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | CENTER WRENCHING FACILITY |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES ALL ENDS IN |
| Leg Length | 1.060 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.960 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.312 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES ALL ENDS |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Media for Which Designed | OIL FIRST RESPONSE |
| Media for Which Designed | FLUID SECOND RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL OR STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) 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 |
|---|---|
| 728179-101 PRIMARY | A and M Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 728179-101 | 5/9 Secondary reference U.S. Government activity |
| 728179-101 | 5/9 Secondary reference Lockheed Martin Services, Llc |
NSN 4730-01-020-7890 is a Nipple,tube, manufactured by A and M Aerospace, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-020-7890 has 1 manufacturer part number on file: 728179-101 (A and M Aerospace, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-020-7980. Verify interchangeability with system specifications before substitution.
Key specifications for 728179-101: Connection Style: FLARELESS (TUBE) ALL ENDS; Nominal Overall Length: 2.120 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Style Designator: CENTER WRENCHING FACILITY. 16 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.