The O-Ring, cataloged under National Stock Number 5331-01-157-6748, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hiab Usa Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-157-6748 |
| Primary Part Number | 991 0719 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hiab Usa Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 5.6 MILLIMETERS MINIMUM AND 5.8 MILLIMETERS MAXIMUM MM |
| Center Hole Diameter | 93.7 MILLIMETERS MINIMUM AND 94.5 MILLIMETERS MAXIMUM MM |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5331-01-157-6748 is a O-Ring, manufactured by Hiab Usa Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-157-6748 has 2 manufacturer part numbers on file: 2AW919 (Oshkosh Defense Llc), 991 0719 (Hiab Usa Inc).
Key specifications for 991 0719: Cross-Sectional Height: 5.6 MILLIMETERS MINIMUM AND 5.8 MILLIMETERS MAXIMUM MM; Center Hole Diameter: 93.7 MILLIMETERS MINIMUM AND 94.5 MILLIMETERS MAXIMUM MM; Material: RUBBER SYNTHETIC. 3 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.