The Attenuator,variable, cataloged under National Stock Number 5985-01-318-8658, 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 Racal Survey Inc Div of Racal Data Communications Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Racal Survey Inc Div of Racal Data Communications Inc (CAGE 33930) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-318-8658 |
| Primary Part Number | 610-506 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Racal Survey Inc Div of Racal Data Communications Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 610-506 PRIMARY | Racal Survey Inc Div of Racal Data Communications Inc (USA) |
| Reference | Meaning |
|---|---|
| 610-506 | C/1 Advisory reference — outside the item-of-supply concept Cryer Electronics |
NSN 5985-01-318-8658 is a Attenuator,variable, manufactured by Racal Survey Inc Div of Racal Data Communications Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-318-8658 has 1 manufacturer part number on file: 610-506 (Racal Survey Inc Div of Racal Data Communications Inc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-383-1630. Verify interchangeability with system specifications before substitution.
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.