The Ring,wearing, cataloged under National Stock Number 4320-01-262-7558, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-262-7558 |
| Primary Part Number | SL-8433 PIECE 23 |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Material | COPPER ALLOY AND NICKEL ALLOY |
| 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 |
|---|---|
| SL-8433 PIECE 23 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 4700-3183542 | D/9 Drawing number reference only Naval Sea Systems Command |
| SL-8433 PIECE 23 | 3/9 Design control — primary reference U.S. Government activity |
| SL-8433 | D/9 Drawing number reference only U.S. Government activity |
| CV61-514-5288107 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4320-01-262-7558 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-262-7558 has 1 manufacturer part number on file: SL-8433 PIECE 23 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-262-9403. Verify interchangeability with system specifications before substitution.
Key specifications for SL-8433 PIECE 23: Material: COPPER ALLOY AND NICKEL ALLOY. 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.