The O-Ring, cataloged under National Stock Number 5331-00-426-3321, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Akron Brass Company. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-426-3321 |
| Primary Part Number | 757198 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Akron Brass Company |
| Status | ACTIVE |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Center Hole Diameter | 0.424 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE NITRILE |
| 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 |
|---|---|
| 757198 PRIMARY | Akron Brass Company (USA) |
| Reference | Meaning |
|---|---|
| 2AB9 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 7-57-022 | 5/9 Secondary reference Akron Brass Company |
| 2AB9 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5331-00-426-3321 is a O-Ring, manufactured by Akron Brass Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-426-3321 has 1 manufacturer part number on file: 757198 (Akron Brass Company).
Key specifications for 757198: Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Special Features: CROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200; Center Hole Diameter: 0.424 INCHES NOMINAL IN; End Item Identification: NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK). 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.