The Gun,air Blow Assembly, cataloged under National Stock Number 4940-01-287-0458, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Vapor Blast Manufacturing Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4940-01-287-0458 |
| Primary Part Number | B43-633-2 |
| Item Name | Gun,air Blow Assembly |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Vapor Blast Manufacturing Co |
| Status | ACTIVE |
| General Characteristics Item Description | INCLUDES,NOZZLE HOLDER;COVER SLEEVE;NOZZLE STEEL 1/2 IN. ID; JET ORIFICE 1/4 IN. ID; BALL MOUNT IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B43-633-2 PRIMARY | Vapor Blast Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| B43-602-2 | 5/9 Secondary reference Vapor Blast Manufacturing Co |
NSN 4940-01-287-0458 is a Gun,air Blow Assembly, manufactured by Vapor Blast Manufacturing Co, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-01-287-0458 has 1 manufacturer part number on file: B43-633-2 (Vapor Blast Manufacturing Co).
Key specifications for B43-633-2: General Characteristics Item Description: INCLUDES,NOZZLE HOLDER;COVER SLEEVE;NOZZLE STEEL 1/2 IN. ID; JET ORIFICE 1/4 IN. ID; BALL MOUNT IN; End Item Identification: CLEANING MACHINE,DRY,MODEL NO.AA400B,VAPOR BLAST MFG COMPANY. 1 specification is 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.