The Support,antenna, cataloged under National Stock Number 5985-01-261-6453, 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 Sigmation Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-261-6453 |
| Primary Part Number | SIB-939 |
| Item Name | Support,antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Sigmation Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 3 |
| Mounting Slot Length | 1.280 INCHES NOMINAL IN |
| Mounting Method | SLOT |
| Basic Shape Style | IRREGULAR |
| Material | PLASTIC |
| Mounting Slot Width | 0.280 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SIB-939 | Sigmation Inc (USA) |
| BP11767 | Burke Products Inc (USA) |
| 5035689 | Triangle Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 5035689-1 | 3/2 Design control — primary reference U.S. Government activity |
| 5035689-1 | 5/9 Secondary reference Signals Warfare Project Manager |
| 5035689 | 5/9 Secondary reference Cobra Industries Inc |
NSN 5985-01-261-6453 is a Support,antenna, manufactured by Sigmation Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-261-6453 has 3 manufacturer part numbers on file: SIB-939 (Sigmation Inc), BP11767 (Burke Products Inc), 5035689 (Triangle Tool Co).
Key specifications for SIB-939: Overall Height: 0.250 INCHES NOMINAL IN; Mounting Facility Quantity: 3; Mounting Slot Length: 1.280 INCHES NOMINAL IN; Mounting Method: SLOT. 6 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.
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.