The Mast Section, cataloged under National Stock Number 5985-01-326-8959, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-326-8959 |
| Primary Part Number | SM-C-939981-1 |
| Item Name | Mast Section |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3 Technologies, Inc. Div Communication Systems-East |
| Status | ACTIVE |
| Maximum Height | 2.900 FEET FT |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Top Diameter | 1.214 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Base Depth | 33.212 INCHES NOMINAL IN |
| Base Diameter | 1.250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Construction | TELESCOPIC |
| Top Depth | 1.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SM-C-939981-1 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| Reference | Meaning |
|---|---|
| SM-C-939981-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-326-8959 is a Mast Section, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-326-8959 has 1 manufacturer part number on file: SM-C-939981-1 (L3 Technologies, Inc. Div Communication Systems-East).
Key specifications for SM-C-939981-1: Maximum Height: 2.900 FEET FT; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Top Diameter: 1.214 INCHES NOMINAL IN; Mounting Method: UNTHREADED HOLE(S). 9 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-326-8959 has DEMIL Code B. 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.