The O-Ring, cataloged under National Stock Number 5331-01-556-4651, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Racor Division Div Racor Division. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-556-4651 |
| Primary Part Number | 20151-8 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corporation Dba Racor Division Div Racor Division |
| 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 |
NSN 5331-01-556-4651 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Racor Division Div Racor Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-556-4651 has 2 manufacturer part numbers on file: 1811052C1 (Nd Defense Llc), 20151-8 (Parker-Hannifin Corporation Dba Racor Division Div Racor Division).
Key specifications for 20151-8: Part Name Assigned by Controlling Agency: RING,O; End Item Identification: MRAP - UNIQUE NSN - MAXXPRO CAT I. 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.