The Cap,tube, cataloged under National Stock Number 4730-01-050-9181, 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 Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 17 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-050-9181 |
| Primary Part Number | MS21914-6R |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | PRESSURE SEAL FLARELESS |
| Tube Outside Diameter for Which Designed | 0.375 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE, FLARELESS |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.562 INCHES INTERNAL IN |
| Specification/standard Data | 81205-BACC14AD MANUFACTURERS STANDARD AND 14798-DB0C14AD MANUFACTURERS STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3B INTERNAL |
| Material | STEEL COMP 347 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| MS21914-6R PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS21914-6R | 5/9 Secondary reference U.S. Government activity |
| DB0C14AD | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| 469-0009-6S | 5/1 Secondary reference Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn |
| FER22661-06S | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| MS21914-6S | 5/9 Secondary reference U.S. Government activity |
| SAE-AS18280 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS18280 | 5/9 Secondary reference Sae International Dba Sae International |
| DB0C14AD6S | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| MIL-F-18280 | 5/9 Secondary reference U.S. Government activity |
| AS18280 | 5/9 Secondary reference U.S. Government activity |
| MS21914-6R | 5/9 Secondary reference U.S. Government activity |
| BACC14AD06S | 5/1 Secondary reference U.S. Government activity |
| AFP241-06S | 5/1 Secondary reference Aerofit, Llc |
| 2-02813-6S | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AFP241-06 | 5/1 Secondary reference Aerofit, Llc |
| BACC14AD6S | 5/9 Secondary reference U.S. Government activity |
| BACC14AD | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-050-9181 is a Cap,tube, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-050-9181 has 1 manufacturer part number on file: MS21914-6R (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-063-0346. Verify interchangeability with system specifications before substitution.
Key specifications for MS21914-6R: Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: PRESSURE SEAL FLARELESS; Tube Outside Diameter for Which Designed: 0.375 INCHES NOMINAL IN; Style Designator: CAP, TUBE, FLARELESS. 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.