The Cap,tube, cataloged under National Stock Number 4730-01-194-1644, 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 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-194-1644 |
| 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 | 0.625 INCHES NOMINAL IN |
| Style Designator | CAP, TUBE, FLARED |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 0.312 INCHES INTERNAL IN |
| Seat Angle | 37.0 DEGREES |
| Thread Class | 3B INTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) INTERNAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MS9314 | 4/1 Identification reference U.S. Government activity |
| MS9314-10 | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-194-1644 is a Cap,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-222-7573, 4730-01-287-9359, 4730-01-316-9236. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-194-1644: Connection Style: PRESSURE SEAL FLARED; Tube Outside Diameter for Which Designed: 0.625 INCHES NOMINAL IN; Style Designator: CAP, TUBE, FLARED; Thread Direction: RIGHT-HAND INTERNAL. 9 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.
NSN 4730-01-194-1644 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.