The O-Ring, cataloged under National Stock Number 5331-00-981-4043, 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 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-981-4043 |
| Primary Part Number | 471247 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Tokyo Judoi Kogyo K.k. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.059 INCHES MINIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | AMS-7278 ASSN STD SINGLE MATERIAL RESPONSE |
| Color | BLACK |
| Center Hole Diameter | 0.200 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 471247 | Tokyo Judoi Kogyo K.k. (JPN) |
| Reference | Meaning |
|---|---|
| 471247 | 5/9 Secondary reference Richmond Lox Equipment Co Sub of Richmond Tank Car Co |
| 471247 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 471247 | 5/9 Secondary reference Micron Machine Corp |
| 471247 | 3/9 Design control — primary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 471247 | 5/9 Secondary reference Tokyo Judogi Kogyo Co. |
NSN 5331-00-981-4043 is a O-Ring, manufactured by Tokyo Judoi Kogyo K.k., classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-981-4043 has 1 manufacturer part number on file: 471247 (Tokyo Judoi Kogyo K.k.).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-121-2331. Verify interchangeability with system specifications before substitution.
Key specifications for 471247: Cross-Sectional Height: 0.059 INCHES MINIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: AMS-7278 ASSN STD SINGLE MATERIAL RESPONSE; Color: BLACK. 6 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.