The Sleeve,vent, cataloged under National Stock Number 4440-01-178-8512, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Aqua-Chem, Inc. Dba Aqua-Chem Inc. 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4440-01-178-8512 |
| Primary Part Number | 926-00065-000 |
| Item Name | Sleeve,vent |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| Status | ACTIVE |
| General Characteristics Item Description | NEOPRENE,1.000 IN. IPS 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 |
|---|---|
| 926-00065-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 633-816 PIECE 19 | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 926-65 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 633-816 | D/9 Drawing number reference only Aqua-Chem, Inc. |
| 926-00065-000 | 3/9 Design control — primary reference Aqua-Chem, Inc. |
| 633-E-8316 PIECE 19 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 633-816 PIECE 19 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 633-E-8316 | D/9 Drawing number reference only Aqua-Chem, Inc. |
| 633-E8316-000 PIECE 19 | 5/9 Secondary reference Aqua-Chem, Inc. |
NSN 4440-01-178-8512 is a Sleeve,vent, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-178-8512 has 2 manufacturer part numbers on file: 926-00065-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 633-816 PIECE 19 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-591-5077. Verify interchangeability with system specifications before substitution.
Key specifications for 926-00065-000: General Characteristics Item Description: NEOPRENE,1.000 IN. IPS IN; End Item Identification: AQUA-CHEM INC DISTILLING PLANT MODEL S-167-FL-2. 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.