The Ring,wiper, cataloged under National Stock Number 5330-00-620-6935, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Busak and Shamban Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-620-6935 |
| Primary Part Number | C542-28 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Busak and Shamban Inc |
| Status | ACTIVE |
| FSC Application Data | PROBE ASSEMBLY,FUEL SYSTEM,AIRCRAFT |
| Outer Edge Thickness | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | OUTSIDE GROOVED, STRAIGHT FACE |
| Outside Diameter | 3.215 INCHES MINIMUM AND 3.219 INCHES MAXIMUM IN |
| Material Thickness | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Inside Diameter | 2.871 INCHES MINIMUM AND 2.873 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Material | UNABLE TO DECODE |
| 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 |
|---|---|
| S11065-28T | Trelleborg Sealing Solutions Us, Inc. (USA) |
| C542-28 PRIMARY | Busak and Shamban Inc (USA) |
| Reference | Meaning |
|---|---|
| S11065-28T | 5/9 Secondary reference U.S. Government activity |
| C542-28 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5330-00-620-6935 is a Ring,wiper, manufactured by Busak and Shamban Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-620-6935 has 2 manufacturer part numbers on file: S11065-28T (Trelleborg Sealing Solutions Us, Inc.), C542-28 (Busak and Shamban Inc).
Key specifications for C542-28: FSC Application Data: PROBE ASSEMBLY,FUEL SYSTEM,AIRCRAFT; Outer Edge Thickness: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Cross-Sectional Shape Style: OUTSIDE GROOVED, STRAIGHT FACE; Outside Diameter: 3.215 INCHES MINIMUM AND 3.219 INCHES MAXIMUM IN. 8 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.