The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-00-936-2161, 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 Transdigm Inc Div Adelwiggins Group. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-936-2161 |
| Primary Part Number | 3753-32D |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Furnished Items and Quantity | 1 TUBE COUPLING NUT AND 2 FLAT WASHER |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | GASKET SEAL, COMPRESSION (TUBE) FIRST END |
| Nominal Length | 3.000 INCHES SECOND END IN |
| Nominal Overall Length | 1.297 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.328 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 2.000 INCHES FIRST END IN |
| Nominal Thread Size | 2.625 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.375 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Surface Treatment | ANODIZE OVERALL |
| Nominal Width | 3.000 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.375 INCHES SECOND END IN |
| Thread Class | 2A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UN FIRST END |
| Nominal Thickness | 0.165 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-00-936-2161 is a Adapter,straight,flange to Tube, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-936-2161 has 2 manufacturer part numbers on file: BC504-32A (Hydraflow), 3753-32D (Transdigm Inc Div Adelwiggins Group).
Key specifications for 3753-32D: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Furnished Items and Quantity: 1 TUBE COUPLING NUT AND 2 FLAT WASHER; Flange Face Design: PLAIN SECOND END; Connection Style: GASKET SEAL, COMPRESSION (TUBE) FIRST END. 21 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.