The Flame Arrester,ventilation-Exhau, cataloged under National Stock Number 2040-01-533-7320, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2040-01-533-7320 |
| Item Name | Flame Arrester,ventilation-Exhau |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 218039302 | 3/2 Design control — primary reference U.S. Government activity |
| C-8035 | 5/2 Secondary reference U.S. Government activity |
NSN 2040-01-533-7320 is a Flame Arrester,ventilation-Exhau, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-575-2147, 7025-01-676-6207. Verify interchangeability with system specifications before substitution.
Key specifications for 2040-01-533-7320: Special Features: MATERIAL: MONEL; SIZE: 1 IN. IPS; END TO END/FLANGE TO FLANGE - 6.375IN.; FLOW RATE: 8 SCFM; PRESSURE DROP - 10IN. WC; DESIGNED FOR IN-LINE GROUP B TYPE GAS-HYDROGEN IN; Part Name Assigned by Controlling Agency: FLAME ARRESTER, VENT; End Item Identification: WSD: LOS ANGELES CLASS SSN ( 688). 0 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.
NSN 2040-01-533-7320 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.