The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-258-2490, 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 John F Kennedy Space Center Dba Nasa Div Kennedy Space Center. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-258-2490 |
| Primary Part Number | KC133K6-5 |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | John F Kennedy Space Center Dba Nasa Div Kennedy Space Center |
| Status | ACTIVE |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Overall Length | 1.335 INCHES IN |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A SECOND END A |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| KC133K6-5 PRIMARY | John F Kennedy Space Center Dba Nasa Div Kennedy Space Center (USA) |
| AS4317K0605 PRIMARY | Sae International Dba Sae International (USA) |
| KC133C6-5 | John F Kennedy Space Center Dba Nasa Div Kennedy Space Center (USA) |
| Reference | Meaning |
|---|---|
| AS4317K0605 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-258-2490 is a Adapter,straight,tube to Boss, manufactured by John F Kennedy Space Center Dba Nasa Div Kennedy Space Center, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-258-2490 has 3 manufacturer part numbers on file: KC133K6-5 (John F Kennedy Space Center Dba Nasa Div Kennedy Space Center), AS4317K0605 (Sae International Dba Sae International), KC133C6-5 (John F Kennedy Space Center Dba Nasa Div Kennedy Space Center).
Key specifications for KC133K6-5: Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END; Connection Style: FLARED (TUBE) FIRST END; Nominal Overall Length: 1.335 INCHES IN; Criticality Code Justification: FEAT. 17 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.