The O-Ring, cataloged under National Stock Number 5331-00-457-6919, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Yale Industrial Products, Inc. Div Duff Norton 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-457-6919 |
| Primary Part Number | X6477-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Yale Industrial Products, Inc. Div Duff Norton Company |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| X6477-1 PRIMARY | Yale Industrial Products, Inc. Div Duff Norton Company (USA) |
| Reference | Meaning |
|---|---|
| WR-3-680-1 FIG 7-8A INDEX NO 19 | C/1 Advisory reference — outside the item-of-supply concept Yale Industrial Products, Inc. Div Duff Norton Company |
| X-6477-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-457-6919 is a O-Ring, manufactured by Yale Industrial Products, Inc. Div Duff Norton Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-457-6919 has 1 manufacturer part number on file: X6477-1 (Yale Industrial Products, Inc. Div Duff Norton Company).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-280-7514, 5331-01-289-1821. Verify interchangeability with system specifications before substitution.
Key specifications for X6477-1: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN; 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.