The O-Ring, cataloged under National Stock Number 5331-01-643-6816, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parts Town, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-643-6816 |
| Primary Part Number | 4A4755-01 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parts Town, Llc |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 4A4755-01 | Parts Town, Llc (USA) |
| Reference | Meaning |
|---|---|
| PL71126 PG 9 INDEX NO. 4 | 5/9 Secondary reference Hoshizaki America Inc |
| 4A4755-01 | 3/9 Design control — primary reference Hoshizaki America Inc |
NSN 5331-01-643-6816 is a O-Ring, manufactured by Parts Town, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-643-6816 has 1 manufacturer part number on file: 4A4755-01 (Parts Town, Llc).
Key specifications for 4A4755-01: End Item Identification: SELF CONTAINED FLAKER. 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.