The Purging Unit,air,liquid Oxygen S, cataloged under National Stock Number 3655-00-429-2896, is classified within Federal Supply Class 3655 (Gas Generating and Dispensing Systems, Fixed or Mobile) of the Special Industry Machinery group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3655-00-429-2896 |
| Item Name | Purging Unit,air,liquid Oxygen S |
| FSC / FSG | 3655 / 36 — Gas Generating and Dispensing Systems, Fixed or Mobile |
| Status | ACTIVE |
| General Characteristics Item Description | HOT AIR PURGE; MAX. WEIGHT 1500 LBS LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| GSU62M | 5/9 Secondary reference U.S. Government activity |
| PD07WRGBGBEA28 | 3/1 Design control — primary reference U.S. Government activity |
| D70009 | 5/9 Secondary reference Tuboscope Vetco International Inc. Div Hydra Rig |
| MILP27456 | 5/9 Secondary reference U.S. Government activity |
| D70009 | 5/9 Secondary reference Hydra Rig Cryogenics Inc |
NSN 3655-00-429-2896 is a Purging Unit,air,liquid Oxygen S, classified under FSC 3655, Gas Generating and Dispensing Systems, Fixed or Mobile. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3655-00-987-2586, 2540-01-513-8199. Verify interchangeability with system specifications before substitution.
Key specifications for 3655-00-429-2896: General Characteristics Item Description: HOT AIR PURGE; MAX. WEIGHT 1500 LBS LBS; Special Features: ACTION ID 45483849. 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.