The O-Ring, cataloged under National Stock Number 5331-01-386-7131, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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 | 5331-01-386-7131 |
| Primary Part Number | C0557TVQ0041-4072 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS3209 ASSN STD ALL MATERIAL RESPONSES |
| Center Hole Diameter | 0.399 INCHES MINIMUM AND 0.419 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| C0557TVQ0041-4072 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AV0843-005 | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 5331-01-386-7131 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-386-7131 has 2 manufacturer part numbers on file: C0557TVQ0041-4072 (Parker-Hannifin Corp Div O-Ring Division), AV0843-005 (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for C0557TVQ0041-4072: Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Criticality Code Justification: FEAT; Material Document and Classification: AMS3209 ASSN STD ALL MATERIAL RESPONSES. 6 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.