The O-Ring, cataloged under National Stock Number 5331-01-467-5174, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Marco Rubber & Plastics, Llc Dba Marco Rubber & Plastics. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-01-467-5174 |
| Primary Part Number | 5-478 V747-75 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Marco Rubber & Plastics, Llc Dba Marco Rubber & Plastics |
| Status | ACTIVE |
| Cross-Sectional Height | 0.139 INCHES NOMINAL IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | MIL-R-83248 MIL SPEC ALL MATERIAL RESPONSES |
| Center Hole Diameter | 11.860 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 | X |
| Part Number | Manufacturer |
|---|---|
| 5-478 V747-75 PRIMARY | Marco Rubber & Plastics, Llc Dba Marco Rubber & Plastics (USA) |
| Reference | Meaning |
|---|---|
| 5-478 V745-75 | 5/9 Secondary reference Marco Rubber & Plastics, Llc Dba Marco Rubber & Plastics |
| 801-7108407 PC NO 7-1 | 5/9 Secondary reference Naval Sea Systems Command |
| 801-7108407 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5331-01-467-5174 is a O-Ring, manufactured by Marco Rubber & Plastics, Llc Dba Marco Rubber & Plastics, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-467-5174 has 1 manufacturer part number on file: 5-478 V747-75 (Marco Rubber & Plastics, Llc Dba Marco Rubber & Plastics).
4 possible matches (shared part number, not a government interchangeability claim): 5305-01-467-6255, 5305-01-700-1887, 4330-01-703-0042. Verify interchangeability with system specifications before substitution.
Key specifications for 5-478 V747-75: Cross-Sectional Height: 0.139 INCHES NOMINAL IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: MIL-R-83248 MIL SPEC ALL MATERIAL RESPONSES; Center Hole Diameter: 11.860 INCHES NOMINAL IN. 5 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.