The Isolator Assembly, cataloged under National Stock Number 4130-00-834-5407, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Aaf-Mcquay Inc. Dba American Air Filter Div American Air Filter. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4130-00-834-5407 |
| Primary Part Number | 4524-3349 |
| Item Name | Isolator Assembly |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Aaf-Mcquay Inc. Dba American Air Filter Div American Air Filter |
| Status | ACTIVE |
| General Characteristics Item Description | CONSIST OF 1 EA SHOULDER SCREW; 1 EA SPACER; 2 EA RUBBER WASHERS; 1 EA PLAIN WASHER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4524-3349 | Aaf-Mcquay Inc. Dba American Air Filter Div American Air Filter (USA) |
| Reference | Meaning |
|---|---|
| MN792 | 5/9 Secondary reference Snydergeneral Corp Dba American Air Filter |
| D4524-3349 | 5/9 Secondary reference U.S. Government activity |
| 80870 | 3/9 Design control — primary reference U.S. Government activity |
| D4524-3349-1 | 5/9 Secondary reference U.S. Government activity |
| D4524-3349 | 5/9 Secondary reference Snydergeneral Corp Dba American Air Filter |
| MNT92 | 5/9 Secondary reference U.S. Government activity |
| 80870 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 4524-3349-1 | 5/9 Secondary reference U.S. Government activity |
| D4524-3349-1 | 5/9 Secondary reference Snydergeneral Corp Dba American Air Filter |
| 4524-3349-1 | 5/9 Secondary reference Snydergeneral Corp Dba American Air Filter |
| 5424-3349 | 5/9 Secondary reference U.S. Government activity |
| 80870 | 5/2 Secondary reference U.S. Government activity |
| 4524-3349 | 5/9 Secondary reference Snydergeneral Corp Dba American Air Filter |
NSN 4130-00-834-5407 is a Isolator Assembly, manufactured by Aaf-Mcquay Inc. Dba American Air Filter Div American Air Filter, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-00-834-5407 has 1 manufacturer part number on file: 4524-3349 (Aaf-Mcquay Inc. Dba American Air Filter Div American Air Filter).
1 possible match (shared part number, not a government interchangeability claim): 6810-01-687-4338. Verify interchangeability with system specifications before substitution.
Key specifications for 4524-3349: General Characteristics Item Description: CONSIST OF 1 EA SHOULDER SCREW; 1 EA SPACER; 2 EA RUBBER WASHERS; 1 EA PLAIN WASHER. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4130-00-834-5407 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.