The Test Adapter,deluge Valve, cataloged under National Stock Number 1720-01-388-6440, is classified within Federal Supply Class 1720 (Aircraft Launching Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1720-01-388-6440 |
| Primary Part Number | 6242921 |
| Item Name | Test Adapter,deluge Valve |
| FSC / FSG | 1720 / 17 — Aircraft Launching Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF; ITEM 1 CAGE 78357 P/N SPHN16-16F, COUPLING HALF, 316SS 1-11 1/2 (F) NPT 1; ITEM 2, CAGE 96906 P/N MS14315-10X, REDUCER BUSHING, BRASS, 1-11 1/2 (M) NPT AND 3/4-14 (F) NPT 1; ITEM 3, CAGE 10001 P/N 258976PC8, ADAPTER, BRASS, 3/4-14 (M) NPT AND 3/4-11 1/2 (M) NPT 1; ITEM 4, CAGE 81349 P/N MIL-T-27730, POLYTETRAFLUOROETHYLENE TAPE AS REQUIRED |
| 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 |
|---|---|
| 6242921 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 10499298 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 6242921-9 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 1720-01-388-6440 is a Test Adapter,deluge Valve, manufactured by Naval Sea Systems Command, classified under FSC 1720, Aircraft Launching Equipment. Status: active.
NSN 1720-01-388-6440 has 1 manufacturer part number on file: 6242921 (Naval Sea Systems Command).
Key specifications for 6242921: General Characteristics Item Description: CONSISTS OF; ITEM 1 CAGE 78357 P/N SPHN16-16F, COUPLING HALF, 316SS 1-11 1/2 (F) NPT 1; ITEM 2, CAGE 96906 P/N MS14315-10X, REDUCER BUSHING, BRASS, 1-11 1/2 (M) NPT AND 3/4-14 (F) NPT 1; ITEM 3, CAGE 10001 P/N 258976PC8, ADAPTER, BRASS, 3/4-14 (M) NPT AND 3/4-11 1/2 (M) NPT 1; ITEM 4, CAGE 81349 P/N MIL-T-27730, POLYTETRAFLUOROETHYLENE TAPE AS REQUIRED; Special Features: ADAPTER ASSEMBLY DELUGE VALVE TEST VLS; End Item Identification: VERTICAL LAUNCHING SYSTEM. 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.