The Cap Nut Acorn, cataloged under National Stock Number 4220-01-170-9507, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Cap Nut Acorn |
| FSC / FSG | 4220 — Marine Lifesaving and Diving Equipment (FSG 42) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950); Draeger Inc (CAGE 6L622) |
| Parameter | Value |
|---|---|
| NSN | 4220-01-170-9507 |
| Primary Part Number | 1334735 |
| Item Name | Cap Nut Acorn |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 4220-01-170-9507 is a Cap Nut Acorn, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-170-9507 has 2 manufacturer part numbers on file: 1334735 (Naval Inventory Control Point Mechanicsburg), 1334735 (Draeger Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-559-4373. Verify interchangeability with system specifications before substitution.
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.