The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-238-8765, 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 Spiral Tool Corporation Dba Stc Industries. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-238-8765 |
| Primary Part Number | 1128PM40751-13 |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Spiral Tool Corporation Dba Stc Industries |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) FIRST END BULKHEAD |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Overall Length | 1.500 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END BULKHEAD |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.437 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES FIRST END BULKHEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 1128PM40751-13 PRIMARY | Spiral Tool Corporation Dba Stc Industries (USA) |
| Reference | Meaning |
|---|---|
| 1128PM40751 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 1128PM40751-13 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 1128PM40751-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-01-238-8765 is a Adapter,straight,tube to Boss, manufactured by Spiral Tool Corporation Dba Stc Industries, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-238-8765 has 1 manufacturer part number on file: 1128PM40751-13 (Spiral Tool Corporation Dba Stc Industries).
Key specifications for 1128PM40751-13: Connection Style: FLARED (TUBE) FIRST END BULKHEAD; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 1.500 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST END BULKHEAD. 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.