The Cap,tube, cataloged under National Stock Number 4730-01-223-7802, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-223-7802 |
| Primary Part Number | ST2103-05 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Connection Style | PRESSURE SEAL FLARED |
| Tube Outside Diameter for Which Designed | 0.312 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE, FLARED |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.500 INCHES INTERNAL IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 2B INTERNAL |
| Thread Quantity Per Inch | 20 INTERNAL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF INTERNAL |
| 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 |
|---|---|
| ST2103-05 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| ST2103 | D/9 Drawing number reference only Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| ST2103-05 | 5/9 Secondary reference Comet Mfg Co Inc |
NSN 4730-01-223-7802 is a Cap,tube, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-223-7802 has 1 manufacturer part number on file: ST2103-05 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for ST2103-05: Connection Style: PRESSURE SEAL FLARED; Tube Outside Diameter for Which Designed: 0.312 INCHES NOMINAL IN; Style Designator: CAP, TUBE, FLARED; Thread Direction: RIGHT-HAND INTERNAL. 10 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.