The O-Ring, cataloged under National Stock Number 5331-01-203-2570, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hersey Measurement Co Div of Miller Industries Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Hersey Measurement Co Div of Miller Industries Inc (CAGE 09550) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-203-2570 |
| Primary Part Number | BDN507B PIECE 13 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hersey Measurement Co Div of Miller Industries Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| BDN507B PIECE 13 PRIMARY | Hersey Measurement Co Div of Miller Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| BND5078 PIECE 13 | 5/9 Secondary reference Hersey Measurement Co Div of Miller Industries Inc |
| S4823D3197953 PIECE 13 | 5/2 Secondary reference U.S. Government activity |
| BDN507B13 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-203-2570 is a O-Ring, manufactured by Hersey Measurement Co Div of Miller Industries Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-203-2570 has 1 manufacturer part number on file: BDN507B PIECE 13 (Hersey Measurement Co Div of Miller Industries Inc).
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.