The Valve,multi Function, cataloged under National Stock Number 2530-01-274-4819, 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 Haldex Brake Products Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2530-01-274-4819 |
| Primary Part Number | N4305B |
| Item Name | Valve,multi Function |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Haldex Brake Products Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | 3/8 IN.PORTS,PLUGGED,SINGLE AXLE APPLICATION 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 |
|---|---|
| N4305B PRIMARY | Haldex Brake Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3700-AF104002 | C/1 Advisory reference — outside the item-of-supply concept Haldex Brake Products Corporation |
| AF104002 | 5/9 Secondary reference Haldex Brake Products Corporation |
| A104002 | 5/9 Secondary reference Haldex Brake Products Corporation |
NSN 2530-01-274-4819 is a Valve,multi Function, manufactured by Haldex Brake Products Corporation, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-274-4819 has 1 manufacturer part number on file: N4305B (Haldex Brake Products Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-538-9034. Verify interchangeability with system specifications before substitution.
Key specifications for N4305B: General Characteristics Item Description: 3/8 IN.PORTS,PLUGGED,SINGLE AXLE APPLICATION IN. 1 specification is 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.