The Ring,wiper, cataloged under National Stock Number 5330-00-573-8057, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc Western Hydraulics Div. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-573-8057 |
| Primary Part Number | D4-3550PC15 |
| Item Name | Ring,wiper |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Tactair Fluid Controls Inc Western Hydraulics Div |
| Status | ACTIVE |
| FSC Application Data | ELEVATOR,AIRCRAFT LIFTING |
| Outer Edge Thickness | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | UNABLE TO DECODE |
| Cross-Sectional Shape Style | OUTSIDE GROOVED, STRAIGHT FACE |
| Outside Diameter | 2.750 INCHES MINIMUM AND 2.755 INCHES MAXIMUM IN |
| Material Thickness | 0.375 INCHES NOMINAL IN |
| Inside Diameter | 2.250 INCHES MINIMUM AND 2.255 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 |
|---|---|
| D4-3550PC15 | Tactair Fluid Controls Inc Western Hydraulics Div (USA) |
| Reference | Meaning |
|---|---|
| 006-028 | 3/9 Design control — primary reference Freudenberg-Nok General Partnership |
NSN 5330-00-573-8057 is a Ring,wiper, manufactured by Tactair Fluid Controls Inc Western Hydraulics Div, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-573-8057 has 1 manufacturer part number on file: D4-3550PC15 (Tactair Fluid Controls Inc Western Hydraulics Div).
1 possible match (shared part number, not a government interchangeability claim): 3130-01-346-2373. Verify interchangeability with system specifications before substitution.
Key specifications for D4-3550PC15: FSC Application Data: ELEVATOR,AIRCRAFT LIFTING; Outer Edge Thickness: 0.250 INCHES NOMINAL IN; Material Document and Classification: UNABLE TO DECODE; Cross-Sectional Shape Style: OUTSIDE GROOVED, STRAIGHT FACE. 9 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.