The Base,antenna Support, cataloged under National Stock Number 5985-01-333-2272, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-333-2272 |
| Primary Part Number | 021-0688-020 |
| Item Name | Base,antenna Support |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Overall Diameter | 2.180 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Mounting Hole Diameter | 0.150 INCHES NOMINAL IN |
| Basic Shape Style | CUP |
| Main Body Inside Diameter | 2.060 INCHES NOMINAL IN |
| Material | STEEL |
| Mounting Hole Type | PLAIN |
| 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 |
|---|---|
| AH-2596RC-1 | Mm Reif Ltd (USA) |
| 021-0688-020 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| AH-2596RC-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-333-2272 is a Base,antenna Support, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-333-2272 has 2 manufacturer part numbers on file: AH-2596RC-1 (Mm Reif Ltd), 021-0688-020 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 021-0688-020: Overall Height: 2.120 INCHES NOMINAL IN; Mounting Facility Quantity: 1; Overall Diameter: 2.180 INCHES NOMINAL IN; Mounting Method: UNTHREADED HOLE(S). 8 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 5985-01-333-2272 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.