The Piston,valve, cataloged under National Stock Number 4810-01-061-8458, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-061-8458 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 87553-5007PC3 | 5/9 Secondary reference Oceanetics Inc |
| 4674165-0003 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 28-55-0112 | 5/9 Secondary reference U.S. Government activity |
| 704-4674165 | D/9 Drawing number reference only Naval Sea Systems Command |
| 87553-5007 ITEM3 | 3/2 Design control — primary reference U.S. Government activity |
| 704-4674165 ITEM 14 | 3/2 Design control — primary reference U.S. Government activity |
| 704-4674165 ITEM 3 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 4810-01-061-8458 is a Piston,valve, classified under FSC 4810, Valves, Powered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-128-4649. Verify interchangeability with system specifications before substitution.
Key specifications for 4810-01-061-8458: Special Features: COPPER ALLOY,QQ-C-390;8.000 IN.LG;12.732 IN.FLANGE OD;SIX HOLES 1.750 IN.DIA.EQUALLY SPACED ON A 5.675 IN.DIA.BOLT CIRCLE;18 HOLES 0.250-20 UNF 2B ON A 9.250 IN.BOLT CIRCLE DIA;PERIPHERY GROOVED,0.375 IN.W,0.250 IN DEEP;11.969 IN.OD.CYLINDER IN. 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 4810-01-061-8458 has DEMIL Code Q. 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.