The Nipple,tube, cataloged under National Stock Number 4730-00-972-3307, 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 Northrop Grumman Systems Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-972-3307 |
| Primary Part Number | 128HM10287-1 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Nominal Overall Length | 1.688 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | FLARED W/ CENTER WRENCHING FACILITY |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Seat Angle | 37.000 DEGREES ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UN 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 |
|---|---|
| 128HM10287-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128HM10287-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-00-972-3307 is a Nipple,tube, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-972-3307 has 1 manufacturer part number on file: 128HM10287-1 (Northrop Grumman Systems Corporation).
Key specifications for 128HM10287-1: Connection Style: FLARED (TUBE) ALL ENDS; Nominal Overall Length: 1.688 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Style Designator: FLARED W/ CENTER WRENCHING FACILITY. 12 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.