The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-658-3616, 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 Hy-Lok Usa, Inc.. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-658-3616 |
| Primary Part Number | FOM12T-12U-S316 |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hy-Lok Usa, Inc. |
| Status | ACTIVE |
| Nominal Width Across Flats | 1.25 INCHES ALL ENDS IN |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Overall Length | 1.97 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.75 INCHES FIRST END IN |
| Nominal Thread Size | 1.0625 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| FOM12T-12U-S316 PRIMARY | Hy-Lok Usa, Inc. (USA) |
NSN 4730-01-658-3616 is a Adapter,straight,tube to Boss, manufactured by Hy-Lok Usa, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-658-3616 has 1 manufacturer part number on file: FOM12T-12U-S316 (Hy-Lok Usa, Inc.).
Key specifications for FOM12T-12U-S316: Nominal Width Across Flats: 1.25 INCHES ALL ENDS IN; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: FLARED (TUBE) FIRST END; Nominal Overall Length: 1.97 INCHES IN. 12 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.