The O-Ring, cataloged under National Stock Number 5331-01-512-5376, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-512-5376 |
| Primary Part Number | MA3442B0335 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 2.6 MILLIMETERS NOMINAL MM |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | AMS7267 ASSN STD SINGLE MATERIAL RESPONSE |
| Specification/standard Data | 81343MA3442 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Center Hole Diameter | 33.5 MILLIMETERS NOMINAL MM |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| MA3442B0335 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MA3442B0335 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-01-512-5376 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-512-5376 has 1 manufacturer part number on file: MA3442B0335 (Sae International Dba Sae International).
Key specifications for MA3442B0335: Cross-Sectional Height: 2.6 MILLIMETERS NOMINAL MM; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: AMS7267 ASSN STD SINGLE MATERIAL RESPONSE; Specification/standard Data: 81343MA3442 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 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.