The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-261-6579, 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 Faber Enterprises, Inc. Div Faber Enterprise Inc. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-261-6579 |
| Primary Part Number | 31788-16 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Faber Enterprises, Inc. Div Faber Enterprise Inc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END BULKHEAD |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES ALL ENDS IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES ALL ENDSUNABLE TO DECODE IN |
| Leg Length | 1.719 INCHES NOMINAL FIRST END IN |
| Leg Length | 2.671 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.671 INCHES NOMINAL SECOND END BULKHEAD IN |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Nominal Thread Size | 1.312 INCHES SECOND END BULKHEAD IN |
| Nominal Thread Size | 1.312 INCHES SECOND END IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE OVERALLUNABLE TO DECODE |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A SECOND END BULKHEAD A |
| Thread Class | 2A SECOND END A |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 SECOND END BULKHEAD |
| Thread Quantity Per Inch | 12 SECOND END |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 304 OVERALL |
| Material | STEEL COMP 304 OVERALLUNABLE TO DECODE |
| Thread Series Designator | UN SECOND END |
| Thread Series Designator | UNABLE TO DECODE |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Thread Series Designator | UN SECOND END BULKHEAD |
| 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 |
|---|---|
| 31788-16 PRIMARY | Faber Enterprises, Inc. Div Faber Enterprise Inc (USA) |
| AP1007-16 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| 2-01047B-16 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| AFP358-16 PRIMARY | Aerofit, Llc (USA) |
| Reference | Meaning |
|---|---|
| DB0A14BB16BJ | C/1 Advisory reference — outside the item-of-supply concept Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| DB0A14BB-16B | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| BACA14BB16BJ | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-261-6579 is a Elbow,tube to Boss, manufactured by Faber Enterprises, Inc. Div Faber Enterprise Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-261-6579 has 4 manufacturer part numbers on file: 31788-16 (Faber Enterprises, Inc. Div Faber Enterprise Inc), AP1007-16 (Sps Technologies, Llc Dba Airdrome Precision Components), 2-01047B-16 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), AFP358-16 (Aerofit, Llc).
Key specifications for 31788-16: Flow Angle: 90.0 DEGREES; Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END; Connection Style: FLARELESS (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END. 29 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.