The O-Ring, cataloged under National Stock Number 5331-00-853-5631, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Tokyo Judoi Kogyo K.k.. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-853-5631 |
| Primary Part Number | 579310 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Tokyo Judoi Kogyo K.k. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.539 INCHES MINIMUM AND 1.559 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 |
|---|---|
| 579310 | Tokyo Judoi Kogyo K.k. (JPN) |
| Reference | Meaning |
|---|---|
| 579310 | 5/9 Secondary reference Tokyo Judogi Kogyo Co. |
| 579310 | 3/9 Design control — primary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 579310 | 5/9 Secondary reference Richmond Lox Equipment Co Sub of Richmond Tank Car Co |
| 579310 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5331-00-853-5631 is a O-Ring, manufactured by Tokyo Judoi Kogyo K.k., classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-853-5631 has 1 manufacturer part number on file: 579310 (Tokyo Judoi Kogyo K.k.).
Key specifications for 579310: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 1.539 INCHES MINIMUM AND 1.559 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.