The Blast Cleaning Room, cataloged under National Stock Number 4940-01-422-3933, 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 Hess Manufacturing Inc Div Blast-It-All. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4940-01-422-3933 |
| Primary Part Number | SPR941020 |
| Item Name | Blast Cleaning Room |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Hess Manufacturing Inc Div Blast-It-All |
| Status | ACTIVE |
| Nozzle Size | 0.250 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-PRF-32037 TYPE 1 SIZE S GOVERNMENT SPECIFICATION |
| Unable to Decode | UNABLE TO DECODE |
| Nozzle Quantity | 2 |
| Material | TUNGSTEN NOZZLE |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| SPR941020 PRIMARY | Hess Manufacturing Inc Div Blast-It-All (USA) |
| Reference | Meaning |
|---|---|
| M32037-1-S | 4/1 Identification reference U.S. Government activity |
NSN 4940-01-422-3933 is a Blast Cleaning Room, manufactured by Hess Manufacturing Inc Div Blast-It-All, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-01-422-3933 has 1 manufacturer part number on file: SPR941020 (Hess Manufacturing Inc Div Blast-It-All).
Key specifications for SPR941020: Overall Height: 120.000 INCHES NOMINAL IN; Nozzle Size: 0.250 INCHES NOMINAL IN; Overall Length: 240.000 INCHES NOMINAL IN; Overall Width: 120.000 INCHES NOMINAL IN. 6 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.