The Attenuator,variable, cataloged under National Stock Number 5985-00-552-4489, 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 Telephonics Corp/prd Instruments. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-552-4489 |
| Primary Part Number | 23568 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| Overall Diameter | 2.750 INCHES NOMINAL IN |
| Attenuation Per Step in Decibels | 0.2 |
| 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 |
|---|---|
| 23568 PRIMARY | Telephonics Corp/prd Instruments (USA) |
| Reference | Meaning |
|---|---|
| TYPE3896 | 5/9 Secondary reference Meggitt (new Hampshire), Inc |
| 23568 | 5/9 Secondary reference Peraton Inc |
NSN 5985-00-552-4489 is a Attenuator,variable, manufactured by Telephonics Corp/prd Instruments, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-552-4489 has 1 manufacturer part number on file: 23568 (Telephonics Corp/prd Instruments).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-205-5166, 1730-01-333-0671. Verify interchangeability with system specifications before substitution.
Key specifications for 23568: Overall Diameter: 2.750 INCHES NOMINAL IN; Attenuation Per Step in Decibels: 0.2; Special Features: SECTION QTY-1,RESISTANCE TOLERANCE-PORM 1 PCT,TERMINAL QTY-6,TERMINAL STYLE-SOLDER LUG,O/A DEPTH 2.062 IN,IMPEDANCE RATING-10,000 OHMS,RESISTOR ELEMENT TYPE-WIRE WOUND,MTG CONFIGURATION-TWO NO. 8-32 THD TAPPED MTG HOLES 0.75 IN. C TO C ON FRONT,FREQ RANGE-0/100 KHZ,STEP QTY-22,DECK QTY-1,ATTENUATION RANGE-0/4.4 DB,DETENT ACTION PROVIDED KHz. 2 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.