The Sleeve,flared,tube Fitting, cataloged under National Stock Number 4730-01-623-9987, 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 Polar Bear Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-623-9987 |
| Primary Part Number | FT6242 |
| Item Name | Sleeve,flared,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Polar Bear Inc |
| Status | ACTIVE |
| Seat Angle in Deg | 45.0 |
| Style Designator | SLEEVE |
| Sleeve Outside Diameter | 0.46 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL |
| Flange Outside Diameter | 0.63 INCHES NOMINAL IN |
| Hose/tube Outside Diameter for Which Designed | 0.500 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 |
|---|---|
| FT6242 PRIMARY | Polar Bear Inc (USA) |
| Reference | Meaning |
|---|---|
| 13027844-1 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 13027844 | D/9 Drawing number reference only Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 4730-01-623-9987 is a Sleeve,flared,tube Fitting, manufactured by Polar Bear Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-623-9987 has 1 manufacturer part number on file: FT6242 (Polar Bear Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-623-9997. Verify interchangeability with system specifications before substitution.
Key specifications for FT6242: Seat Angle in Deg: 45.0; Style Designator: SLEEVE; Overall Length: 0.55 INCHES NOMINAL IN; Sleeve Outside Diameter: 0.46 INCHES NOMINAL IN. 7 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.