The O-Ring, cataloged under National Stock Number 5331-00-083-7400, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-083-7400 |
| Primary Part Number | B2620-5059 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corporation |
| Status | ACTIVE |
| Outside Diameter | 4.000 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | MIL-R-83248,TY 2,CL 1 MIL STD SINGLE MATERIAL RESPONSE |
| Elongation Percentage | 125 MAXIMUM |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Cross-Sectional Diameter | 0.094 INCHES NOMINAL IN |
| 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 |
|---|---|
| B2620-5059 PRIMARY | Parker-Hannifin Corporation (USA) |
| Reference | Meaning |
|---|---|
| MIL-R-83248/1 | 4/1 Identification reference U.S. Government activity |
| MIL-R-83248 TY1 CL1 | 5/9 Secondary reference U.S. Government activity |
| 2620-5045 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-083-7400 is a O-Ring, manufactured by Parker-Hannifin Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-083-7400 has 1 manufacturer part number on file: B2620-5059 (Parker-Hannifin Corporation).
6 possible matches (shared part number, not a government interchangeability claim): 5330-00-175-7569, 5330-01-113-9882, 5331-01-253-3163. Verify interchangeability with system specifications before substitution.
Key specifications for B2620-5059: Outside Diameter: 4.000 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: MIL-R-83248,TY 2,CL 1 MIL STD SINGLE MATERIAL RESPONSE; Elongation Percentage: 125 MAXIMUM. 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.