The Sleeve,antenna Support, cataloged under National Stock Number 5985-00-139-1071, 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 L3harris Technologies, Inc.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-139-1071 |
| Primary Part Number | 2158439G001 |
| Item Name | Sleeve,antenna Support |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| FSC Application Data | ANTENNA GROUP,RADIO NAVIGATION,NONAIRBORNE,AN/GRA120 |
| Mounting Facility Quantity | 2 |
| Overall Diameter | 1.350 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Mounting Method | FRICTION AND THREADED BASE |
| Basic Shape Style | CYLINDRICAL |
| Surface Treatment | PASSIVATE |
| Thread Class | 2A A |
| Material | STEEL COMP 303 |
| Thread Size and Series/type Designator | 1.375/18 UNEF |
| 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 |
|---|---|
| 2158439G001 PRIMARY | L3harris Technologies, Inc. (USA) |
NSN 5985-00-139-1071 is a Sleeve,antenna Support, manufactured by L3harris Technologies, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-139-1071 has 1 manufacturer part number on file: 2158439G001 (L3harris Technologies, Inc.).
Key specifications for 2158439G001: FSC Application Data: ANTENNA GROUP,RADIO NAVIGATION,NONAIRBORNE,AN/GRA120; Mounting Facility Quantity: 2; Overall Diameter: 1.350 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN; Mounting Method: FRICTION AND THREADED BASE. 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 5985-00-139-1071 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.