The Chamber,air Brake, cataloged under National Stock Number 2530-01-050-3298, 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 Nd Defense Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2530-01-050-3298 |
| Primary Part Number | ZAJ3430051 |
| Item Name | Chamber,air Brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Nd Defense Llc |
| Status | CANCELLED |
| Line Connection Thread Size and Series/type Designator | 0.375-18 NPT |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ZAJ3430051 PRIMARY | Nd Defense Llc (USA) |
| 2830 645 | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| Reference | Meaning |
|---|---|
| 991071C91 | 5/9 Secondary reference U.S. Government activity |
| 456255C91 | 5/9 Secondary reference U.S. Government activity |
| 456254C91 | 5/9 Secondary reference U.S. Government activity |
| 2530010503298 | 5/9 Secondary reference E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| SG30LD68 | 5/9 Secondary reference Mgm Brakes Inc Div Indian Head Industries Inc |
| ZAJ3430051 | 5/9 Secondary reference U.S. Government activity |
| 3030SB | 5/9 Secondary reference Diamond Reo Truck Co |
| 781020010 | 5/9 Secondary reference White Motor Corp |
| 3030076 | 5/9 Secondary reference Mgm Brakes Inc Div Indian Head Industries Inc |
NSN 2530-01-050-3298 is a Chamber,air Brake, manufactured by Nd Defense Llc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: cancelled.
NSN 2530-01-050-3298 has 2 manufacturer part numbers on file: ZAJ3430051 (Nd Defense Llc), 2830 645 (Chrysler Realty Company Llc Dba Daimler Chrysler).
3 possible matches (shared part number, not a government interchangeability claim): 2530-01-151-8906, 5355-01-170-6049, 5995-01-570-5082. Verify interchangeability with system specifications before substitution.
Key specifications for ZAJ3430051: Line Connection Thread Size and Series/type Designator: 0.375-18 NPT; Special Features: STUD MTD; FURNISHED W/SPRING LOADED MANUAL RELEASE AND END CAP. 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.
NSN 2530-01-050-3298 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.