The Adapter,straight,flange to Pipe, cataloged under National Stock Number 4730-01-066-1283, 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 Eastern Gear Corporation. Government technical data includes 20 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 | 4730-01-066-1283 |
| Primary Part Number | 11685861 |
| Item Name | Adapter,straight,flange to Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eastern Gear Corporation |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Nominal Pipe Size Accommodated | 2.000 INCHES FIRST END IN |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | GROOVED (PIPE) FIRST END |
| Nominal Length | 4.750 INCHES SECOND END IN |
| Nominal Overall Length | 2.000 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED EXTERNAL PIPE FIRST END |
| Material Document and Classification | MIL-P-25995,T6 MIL SPEC 2ND MATERIAL RESPONSE FLANGE |
| Material Document and Classification | QQ-A-250/11,T4 FED SPEC 1ST MATERIAL RESPONSE BODY |
| Bolt Hole Nominal Diameter | 0.566 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 3.380 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 FIRST END |
| Surface Treatment | ENAMEL BODY |
| Nominal Width | 4.750 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 3.380 INCHES SECOND END IN |
| Material | ALUMINUM ALLOY 6061 BODY |
| Material | ALUMINUM ALLOY 6063 FLANGE |
| Nominal Thickness | 0.500 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 4730-01-066-1283 is a Adapter,straight,flange to Pipe, manufactured by Eastern Gear Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-066-1283 has 2 manufacturer part numbers on file: 11685861 (U S Army Tank Automotive Command Amsta-Im-Mm), 11685861 (Eastern Gear Corporation).
Key specifications for 11685861: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Nominal Pipe Size Accommodated: 2.000 INCHES FIRST END IN; Flange Face Design: PLAIN SECOND END; Connection Style: GROOVED (PIPE) FIRST END. 20 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.