The O-Ring, cataloged under National Stock Number 5331-01-555-1386, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Zatkoff Seals and Packings. Government technical data includes 4 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 | 5331-01-555-1386 |
| Primary Part Number | ORM0400-24000 N-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Zatkoff Seals and Packings |
| Status | ACTIVE |
| Cross-Sectional Height | 4.000 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 240.0 MILLIMETERS NOMINAL MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| ORM0400-24000 N-70 PRIMARY | Zatkoff Seals and Packings (USA) |
| 240X4 | Veth Propulsion (NLD) |
NSN 5331-01-555-1386 is a O-Ring, manufactured by Zatkoff Seals and Packings, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-555-1386 has 2 manufacturer part numbers on file: ORM0400-24000 N-70 (Zatkoff Seals and Packings), 240X4 (Veth Propulsion).
Key specifications for ORM0400-24000 N-70: Cross-Sectional Height: 4.000 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 240.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: STEERING SHAFT O-RING. 4 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.