The Fitting,aerial Refueling, cataloged under National Stock Number 1680-01-174-3103, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-174-3103 |
| Primary Part Number | L4850139-005 |
| Item Name | Fitting,aerial Refueling |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| FSC Application Data | FUEL TANK FORWARD FUSELAGE |
| General Characteristics Item Description | C/O ELBOW; ELECTROFORM NICKEL PER LB0170-107,CL 2;FLANGE PLATE PER MIL-T-9046,T1,6AL-4V TY 3,COMP C,COND A,6.500 IN. DIA BY 1.000 IN. THK;FITTING PER MIL-T-9046,T1,6AL-4V,TY 3,COMP C,COND A,1.060 IN. LG BY 1.000 IN. THK BY 1.060 IN. WD;9.900 IN. HGT O/A V |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| L4850139-005 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| L4800106-031 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
NSN 1680-01-174-3103 is a Fitting,aerial Refueling, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-174-3103 has 1 manufacturer part number on file: L4850139-005 (The Boeing Company Div Legacy Am&m).
Key specifications for L4850139-005: FSC Application Data: FUEL TANK FORWARD FUSELAGE; General Characteristics Item Description: C/O ELBOW; ELECTROFORM NICKEL PER LB0170-107,CL 2;FLANGE PLATE PER MIL-T-9046,T1,6AL-4V TY 3,COMP C,COND A,6.500 IN. DIA BY 1.000 IN. THK;FITTING PER MIL-T-9046,T1,6AL-4V,TY 3,COMP C,COND A,1.060 IN. LG BY 1.000 IN. THK BY 1.060 IN. WD;9.900 IN. HGT O/A V; End Item Identification: B-1B ACFT. 2 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.
NSN 1680-01-174-3103 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.