The Regulator,air, cataloged under National Stock Number 1375-01-137-1985, is classified within Federal Supply Class 1375 (Demolition Materials) of the Ammunition and Explosives group. The manufacturer of record is Pauli Systems, Inc. Dba Pauli Systems Inc. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1375-01-137-1985 |
| Primary Part Number | 520-020-01 |
| Item Name | Regulator,air |
| FSC / FSG | 1375 / 13 — Demolition Materials |
| Manufacturer | Pauli Systems, Inc. Dba Pauli Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 520-020-01 PRIMARY | Pauli Systems, Inc. Dba Pauli Systems Inc (USA) |
| 903-071 PRIMARY | Pauli Systems, Inc. Dba Pauli Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 903-071 | 5/9 Secondary reference U.S. Government activity |
NSN 1375-01-137-1985 is a Regulator,air, manufactured by Pauli Systems, Inc. Dba Pauli Systems Inc, classified under FSC 1375, Demolition Materials. Status: active.
NSN 1375-01-137-1985 has 2 manufacturer part numbers on file: 520-020-01 (Pauli Systems, Inc. Dba Pauli Systems Inc), 903-071 (Pauli Systems, Inc. Dba Pauli Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-203-8641, 5995-01-252-8402. Verify interchangeability with system specifications before substitution.
Key specifications for 520-020-01: End Item Identification: BLAST CLEANING CABINET. 0 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 1375-01-137-1985 has DEMIL Code B. 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.