The Ring,wiper, cataloged under National Stock Number 5330-01-290-9710, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps). Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-290-9710 |
| Primary Part Number | 959-21 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) |
| Status | ACTIVE |
| Outer Edge Thickness | 0.104 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | OUTSIDE GROOVED, STRAIGHT FACE |
| Outside Diameter | 2.309 INCHES NOMINAL IN |
| Inside Diameter | 1.998 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 959-21 PRIMARY | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) (USA) |
| SH959-21 PRIMARY | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) (USA) |
| Reference | Meaning |
|---|---|
| 1A60648H01 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 1A60648 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| SH959-21 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 959-21 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5330-01-290-9710 is a Ring,wiper, manufactured by Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps), classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-290-9710 has 2 manufacturer part numbers on file: 959-21 (Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)), SH959-21 (Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-422-5957. Verify interchangeability with system specifications before substitution.
Key specifications for 959-21: Outer Edge Thickness: 0.104 INCHES NOMINAL IN; Cross-Sectional Shape Style: OUTSIDE GROOVED, STRAIGHT FACE; Outside Diameter: 2.309 INCHES NOMINAL IN; Inside Diameter: 1.998 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.