The Ring,wiper, cataloged under National Stock Number 5330-00-790-7172, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-790-7172 |
| Primary Part Number | S2546392-501 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company |
| Status | ACTIVE |
| FSC Application Data | HYDRAULIC SYSTEM,AIRCRAFT |
| Outer Edge Thickness | 0.084 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | GROOVED FACE, STRAIGHT EDGE, HOOKED |
| Outside Diameter | 0.672 INCHES MINIMUM AND 0.677 INCHES MAXIMUM IN |
| Joint Style | DIAGONAL JOINT |
| Material Thickness | 0.116 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN |
| Inside Diameter | 0.438 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | UNABLE TO DECODE |
| 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 |
|---|---|
| S2546392-501 | Walker Screw Products Inc (USA) |
| S2546392-501 PRIMARY | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| S2546392-501 | Kitco Llc (USA) |
| Reference | Meaning |
|---|---|
| 2546392-501 | 5/2 Secondary reference U.S. Government activity |
| S2546392 | D/9 Drawing number reference only U.S. Government activity |
| 2546392-501 | 5/9 Secondary reference The Boeing Company |
| S2546392-501 | 5/2 Secondary reference U.S. Government activity |
| S2546392-501 | 5/9 Secondary reference The Boeing Company |
NSN 5330-00-790-7172 is a Ring,wiper, manufactured by Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-790-7172 has 3 manufacturer part numbers on file: S2546392-501 (Walker Screw Products Inc), S2546392-501 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), S2546392-501 (Kitco Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-284-6918. Verify interchangeability with system specifications before substitution.
Key specifications for S2546392-501: FSC Application Data: HYDRAULIC SYSTEM,AIRCRAFT; Outer Edge Thickness: 0.084 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN; Cross-Sectional Shape Style: GROOVED FACE, STRAIGHT EDGE, HOOKED; Outside Diameter: 0.672 INCHES MINIMUM AND 0.677 INCHES MAXIMUM IN. 10 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.