The Air Mod Valve, cataloged under National Stock Number 4520-01-555-4997, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Nd Defense Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-555-4997 |
| Primary Part Number | BX801481 |
| Item Name | Air Mod Valve |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Nd Defense Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4520-01-555-4997 is a Air Mod Valve, manufactured by Nd Defense Llc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-555-4997 has 2 manufacturer part numbers on file: 801481 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems), BX801481 (Nd Defense Llc).
Key specifications for BX801481: Part Name Assigned by Controlling Agency: VALVE-MODULATOR AIR M-32QR; End Item Identification: MRAP - UNIQUE NSN - USED ON 5 MRAP VARIANTS. 0 specifications are 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.
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.