The Attenuator,fixed, cataloged under National Stock Number 5985-00-253-3898, 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 American Valley Aviation, Inc. Dba American Valley Aviation Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | American Valley Aviation, Inc. Dba American Valley Aviation Inc (CAGE 0YBF0) |
| Parameter | Value |
|---|---|
| NSN | 5985-00-253-3898 |
| Primary Part Number | AVAATT-110 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | American Valley Aviation, Inc. Dba American Valley Aviation 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 |
|---|---|
| AVAATT-110 | American Valley Aviation, Inc. Dba American Valley Aviation Inc (USA) |
| 437A | American Valley Aviation, Inc. Dba American Valley Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 437A | 5/9 Secondary reference U.S. Government activity |
| 837-BNC | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-253-3898 is a Attenuator,fixed, manufactured by American Valley Aviation, Inc. Dba American Valley Aviation Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-253-3898 has 2 manufacturer part numbers on file: AVAATT-110 (American Valley Aviation, Inc. Dba American Valley Aviation Inc), 437A (American Valley Aviation, Inc. Dba American Valley Aviation Inc).
4 possible matches (shared part number, not a government interchangeability claim): 6625-00-424-4896, 5910-00-883-5392, 5960-00-917-7624. 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.