The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-691-5451, 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 Parker-Hannifin Corporation Div Instrumentation Products Division. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-691-5451 |
| Primary Part Number | 1MSC1N-316 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Div Instrumentation Products Division |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 FERRULE SLEEVE AND 1 SHORT COUPLING NUT |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Overall Length | 0.781 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.062 INCHES FIRST END IN |
| Nominal Thread Size | 0.190 INCHES FIRST END IN |
| Nominal Thread Size | 0.062 INCHES SECOND END IN |
| Seat Angle | 20.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A FIRST END A |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | NPT SECOND END |
| Thread Series Designator | UNF FIRST 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 |
|---|---|
| 1CM1-316 | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 1MSC1N-316 PRIMARY | Parker-Hannifin Corporation Div Instrumentation Products Division (USA) |
| Reference | Meaning |
|---|---|
| 100-1-1-316 | 5/9 Secondary reference Swagelok Co |
| 1CM1-316 | 5/9 Secondary reference J R Douglass Company |
NSN 4730-00-691-5451 is a Adapter,straight,pipe to Tube, manufactured by Parker-Hannifin Corporation Div Instrumentation Products Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-691-5451 has 2 manufacturer part numbers on file: 1CM1-316 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 1MSC1N-316 (Parker-Hannifin Corporation Div Instrumentation Products Division).
Key specifications for 1MSC1N-316: Furnished Items and Quantity: 2 FERRULE SLEEVE AND 1 SHORT COUPLING NUT; Connection Style: FLARELESS (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 0.781 INCHES IN. 15 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.