The Attenuator,variable, cataloged under National Stock Number 5985-00-009-7631, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5985-00-009-7631 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.5 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Frequency Range | 960.000 MEGAHERTZ MINIMUM AND 1.215 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 ELECTRONIC, CURRENT CONTROLLED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.840 INCHES MINIMUM AND 1.860 INCHES MAXIMUM IN |
| Overall Attenuation Range in Decibels | +0.0 TO 50.0 |
| Voltage Standing Wave Ratio | 1.50 |
| Unthreaded Mounting Hole Diameter | 0.158 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Attenuation Variation Method | CONTINUOUS |
| Operating Temp Range | -55.0 TO 100.0 CELSIUS DEGC |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.455 INCHES MINIMUM AND 1.475 INCHES MAXIMUM IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 3 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 2.0 WATTS AVERAGE AND 100.0 WATTS PEAK |
| Coaxial Connector Series Designation | SM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SL166 | 3/9 Design control — primary reference Teledyne Wireless, Inc. Dba Teledyne Microwave Div Teledyne Microwave |
| SL166 | C/1 Advisory reference — outside the item-of-supply concept Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions |
| SL166 | 5/9 Secondary reference Litton Systems Inc Hyletronics Group-Airtron Div |
| SL166 | 5/9 Secondary reference Hyletronics Limited Partnership |
| 8803300003-1 | 5/9 Secondary reference Navcom Defense Electronics, Inc. |
NSN 5985-00-009-7631 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6210-00-279-3029. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-00-009-7631: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.5; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 0.350 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN. 18 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.