The Sleeve,compression,tube-Hose Fit, cataloged under National Stock Number 4730-00-121-0417, 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 Aerofit, Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-121-0417 |
| Primary Part Number | NAS595-4E |
| Item Name | Sleeve,compression,tube-Hose Fit |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Aerofit, Llc |
| Status | ACTIVE |
| Seat Angle in Deg | 33.0 |
| Style Designator | DOUBLE BEVEL FLARELESS |
| Material Document and Classification | MIL-S-18732, COND HT-200 MIL SPEC SINGLE MATERIAL RESPONSE |
| Sleeve Outside Diameter | 0.384 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 431 |
| Metallic Hardness Rating | 20.0 MINIMUM ROCKWELL C AND 32.0 MAXIMUM ROCKWELL C |
| Hose/tube Outside Diameter for Which Designed | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| NAS595-4E | Aerofit, Llc (USA) |
| Reference | Meaning |
|---|---|
| NAS595-4E | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-121-0417 is a Sleeve,compression,tube-Hose Fit, manufactured by Aerofit, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-121-0417 has 1 manufacturer part number on file: NAS595-4E (Aerofit, Llc).
Key specifications for NAS595-4E: Seat Angle in Deg: 33.0; Style Designator: DOUBLE BEVEL FLARELESS; Material Document and Classification: MIL-S-18732, COND HT-200 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 0.337 INCHES NOMINAL IN. 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.
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.