The Drain Valve Assembly, cataloged under National Stock Number 4810-01-559-5989, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-559-5989 |
| Item Name | Drain Valve Assembly |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 93-7686-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-559-5989 is a Drain Valve Assembly, classified under FSC 4810, Valves, Powered. Status: active.
Key specifications for 4810-01-559-5989: Special Features: CONSISTS OF P/N 93-7687 DRAIN VALVE ASSY AND P/N 83-3048 NUT (1.00 HEX X .75-16UNF-3B THREADS MEASURES .24 - .32 THICK); DRAIN VALVE HAS A HEX HEAD MEASURING 1.115 - 1.135 ACROSS THE FLATS, HEAD IS 0.16 TO 0.22 THICK, BODY IS .793 - .818 IN DIA AND 0.695-0.715 LONG, HAS .750-16UNF-3A THREADS; HAS A .62 WIDE BLACK STRIPE LONG THE TOP AND 2 SIDES REAMINDER OF SURFACE IS RED.HAS A MIL-R-25988/1 O-RING. STAMPED WITH P/N 72429S0CN50302. MEETS REQUIREMENTS OF MIL-V-25023 FOR MS29571-1 VALVES EXCEPT DRAIN TIME SHALL NOT RECEED 45 SECONDS. A; Part Name Assigned by Controlling Agency: DRAIN VALVE ASSY. 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.
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.