The Cap,tube, cataloged under National Stock Number 4730-01-263-7181, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-263-7181 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | PRESSURE SEAL FLARED |
| Tube Outside Diameter for Which Designed | 0.250 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE, FLARED |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.437 INCHES INTERNAL IN |
| Seat Angle | 37.0 DEGREES |
| Specification/standard Data | 88044-AN929 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3B INTERNAL |
| Material | STEEL COMP 316 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 |
| Reference | Meaning |
|---|---|
| AN929A4K | 2/2 Government specification standardization U.S. Government activity |
| AS4841 | 5/9 Secondary reference U.S. Government activity |
| AS4841 | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-AS4841 | 5/1 Secondary reference Sae International Dba Sae International |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN929 | 4/1 Identification reference U.S. Government activity |
NSN 4730-01-263-7181 is a Cap,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-263-7181: Connection Style: PRESSURE SEAL FLARED; Tube Outside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Style Designator: CAP, TUBE, FLARED; Thread Direction: RIGHT-HAND INTERNAL. 11 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.