The Rack,piston, cataloged under National Stock Number 4810-01-300-0157, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-300-0157 |
| Primary Part Number | 704-5858418 ITEM 2 |
| Item Name | Rack,piston |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL;14.500 IN. O/A LG 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 |
|---|---|
| 704-5858418 ITEM 2 PRIMARY | Naval Sea Systems Command (USA) |
| 2175-7 ITEM 2 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 5858418 ITEM 2 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 704-5858418 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2175-7 ITEM 2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2175-7 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4810-01-300-0157 is a Rack,piston, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-300-0157 has 2 manufacturer part numbers on file: 704-5858418 ITEM 2 (Naval Sea Systems Command), 2175-7 ITEM 2 (Huntington Ingalls Inc Div Newport News Shipbuilding).
4 possible matches (shared part number, not a government interchangeability claim): 5310-01-327-9065, 5120-01-491-8914, 4730-01-517-0495. Verify interchangeability with system specifications before substitution.
Key specifications for 704-5858418 ITEM 2: General Characteristics Item Description: STAINLESS STEEL;14.500 IN. O/A LG IN; End Item Identification: NEWPORT NEWS SHIPBUILDING,SUBMARINE,CLASS SSN 688. 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.