The Attenuator,variable, cataloged under National Stock Number 5985-00-231-8897, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5985-00-231-8897 |
| Primary Part Number | 2534892 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Shaft Type | ROUND |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.1 |
| Impedance Rating in Ohms | 75.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 3 THREADED HOLE(S) |
| Frequency Range | 0.000 MEGAHERTZ MINIMUM AND 100.000 MEGAHERTZ MAXIMUM |
| Shaft Diameter | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | THREE POSITION CIRCULAR |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Overall Attenuation Range in Decibels | +0.0 TO 9.7 |
| Voltage Standing Wave Ratio | 1.05 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Accuracy in Decibels | -0.10 TO 0.10 |
| Scale Linearity | NONLINEAR |
| Attenuation Variation Method | CONTINUOUS |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.562 INCHES NOMINAL IN |
| Scale Division Quantity | 12 |
| Mounting Facility Nominal Screw Thread Diameter | 0.138 INCHES IN |
| Bolt Circle Diameter | 2.000 INCHES NOMINAL IN |
| Operating Temp Range | +0.0 TO 70.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 250.0 MILLIWATTS AVERAGE |
| Coaxial Connector Series Designation | BNC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2534892 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 0912A | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
| 75V61.2-1543 | Alan Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| RA-5015 | 5/9 Secondary reference Trilithic, Inc. |
NSN 5985-00-231-8897 is a Attenuator,variable, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-231-8897 has 3 manufacturer part numbers on file: 2534892 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 0912A (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc), 75V61.2-1543 (Alan Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-279-7398. Verify interchangeability with system specifications before substitution.
Key specifications for 2534892: Shaft Type: ROUND; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.1; Impedance Rating in Ohms: 75.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 3 THREADED HOLE(S). 25 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 5985-00-231-8897 has DEMIL Code Q. 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.