The Nipple,tube, cataloged under National Stock Number 4730-01-046-8531, 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 Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-046-8531 |
| Primary Part Number | 1BU-316/102 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 BULKHEAD NUT AND 2 TUBE COUPLING NUT AND 4 FERRULE SLEEVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Nominal Overall Length | 0.963 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | FLARELESS W/ BULKHEAD THREADS |
| Material Document and Classification | ASTM A479,TYPE 316,CONDITION A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.062 INCHES ALL ENDS IN |
| Leg Length | 0.265 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.540 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.190 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES ALL ENDS |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 1BU-316/102 PRIMARY | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 639AS1563 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 588.10-200000-005 | Diehl Defence Gmbh & Co. Kg (DEU) |
NSN 4730-01-046-8531 is a Nipple,tube, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-046-8531 has 3 manufacturer part numbers on file: 1BU-316/102 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 639AS1563 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 588.10-200000-005 (Diehl Defence Gmbh & Co. Kg).
Key specifications for 1BU-316/102: Furnished Items and Quantity: 1 BULKHEAD NUT AND 2 TUBE COUPLING NUT AND 4 FERRULE SLEEVE; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARELESS (TUBE) ALL ENDS; Nominal Overall Length: 0.963 INCHES IN. 16 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.