The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-393-5897, 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 Swagelok Co. Government technical data includes 10 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-393-5897 |
| Primary Part Number | S-4-TA-0R-ST |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 PREFORMED PACKING |
| Connection Style | GROOVED (TUBE) FIRST END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Nominal Overall Length | 1.640 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT SECOND END |
| 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 |
|---|---|
| S-4-TA-0R-ST PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 14741000-202 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 14741000 ITEM 202 | 5/2 Secondary reference U.S. Government activity |
| 14741000-202 | 5/9 Secondary reference U.S. Government activity |
| 14741000 ITEM 202 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 14741000 | D/9 Drawing number reference only U.S. Government activity |
| 14741000-202 | 5/2 Secondary reference U.S. Government activity |
| 14741000 ITEM 202 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-393-5897 is a Adapter,straight,tube to Boss, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-393-5897 has 1 manufacturer part number on file: S-4-TA-0R-ST (Swagelok Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-393-5900. Verify interchangeability with system specifications before substitution.
Key specifications for S-4-TA-0R-ST: Furnished Items and Quantity: 1 PREFORMED PACKING; Connection Style: GROOVED (TUBE) FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Nominal Overall Length: 1.640 INCHES IN. 10 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.