The Valve,relay,air Pressure, cataloged under National Stock Number 2530-01-497-7185, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-497-7185 |
| Primary Part Number | S4721950330 |
| Item Name | Valve,relay,air Pressure |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| First End Thread Series Designator | NPTF |
| Second End Nominal Thread Size | 0.375 INCHES IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | MULTIPLE CIONNECTION |
| Third End Relationship with Preceding Ends | IDENTICAL WITH SECOND END |
| Second End Thread Series Designator | NPTF |
| End Connection Quantity | 3 |
| First End Connection Type | THREADED INTERNAL PIPE |
| Media for Which Designed | AIR |
| Second End Connection Type | THREADED INTERNAL PIPE |
| First End Nominal Thread Size | 0.750 INCHES IN |
| 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 |
|---|---|
| S4721950330 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
NSN 2530-01-497-7185 is a Valve,relay,air Pressure, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-497-7185 has 1 manufacturer part number on file: S4721950330 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for S4721950330: First End Thread Series Designator: NPTF; Second End Nominal Thread Size: 0.375 INCHES IN; Second End Relationship with First End: NOT IDENTICAL; Body Style: MULTIPLE CIONNECTION. 11 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.