The Tower Support Group, cataloged under National Stock Number 5445-01-079-9135, is classified within Federal Supply Class 5445 (Prefabricated Tower Structures) of the Prefabricated Structures and Scaffolding group. The manufacturer of record is U S Dept of Transportation Federal Aviation Administration. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5445-01-079-9135 |
| Primary Part Number | D6155-1-12 |
| Item Name | Tower Support Group |
| FSC / FSG | 5445 / 54 — Prefabricated Tower Structures |
| Manufacturer | U S Dept of Transportation Federal Aviation Administration |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| D6155-1-12 | U S Dept of Transportation Federal Aviation Administration (USA) |
| L9135 | Jaquith Industries Inc (USA) |
| D6155-6A20FT | U S Dept of Transportation Federal Aviation Administration (USA) |
| Reference | Meaning |
|---|---|
| D6155-24-12 | 5/9 Secondary reference Jaquith Industries Inc |
| D6155-1-12 | 3/2 Design control — primary reference U.S. Government activity |
| D6155TUBEAX20FT | 5/2 Secondary reference U.S. Government activity |
| L9135TUBEAX20 | 5/9 Secondary reference Jaquith Industries Inc |
NSN 5445-01-079-9135 is a Tower Support Group, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5445, Prefabricated Tower Structures. Status: active.
NSN 5445-01-079-9135 has 3 manufacturer part numbers on file: D6155-1-12 (U S Dept of Transportation Federal Aviation Administration), L9135 (Jaquith Industries Inc), D6155-6A20FT (U S Dept of Transportation Federal Aviation Administration).
Key specifications for D6155-1-12: Special Features: TUBE "A",20 FEET LONG. USED TO FABRICATE A MAST FOR LOW-IMPACT RESIS TANCE STRUCTURES FOR LIGHTING SUPPORTSFOR AIRPORT APPROACH LIGHTING SYSTEMS,MODELS ALSF-2 AND MALSR. OVER-ALL DIM.6.000 INCH PLUS 0.005 OR MINUS 0.000 INCH ID; 6.250 INCH PLUS OR MINUS 0.031 INCH OD; 20 FEET 0 INCH PLUS OR MINUS 0.125 INCH LONG. HELIX RING JOINTS SPACED AT 42.00 INCH INTERVALS FOR FRANGIBLE JOINT. MATERIAL FIBER- GLASS. PER FAA SPEC. FAA-E-2702;ITEM 12, DRWG D-6155-1, ALSF-2 AND MALSR LIR STRUCTURES, STRUCTURAL CONFIGURATIONS IN; Part Name Assigned by Controlling Agency: TUBE A. 0 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.