The Retainer,packing, cataloged under National Stock Number 5330-00-180-4166, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 8 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 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 | 5330-00-180-4166 |
| Primary Part Number | A56-170 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| FSC Application Data | WHEEL,NOSE |
| Cross-Sectional Height | 0.280 INCHES NOMINAL IN |
| Body Recess Diameter | 2.875 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | FLANGE |
| Peripheral Diameter | 3.546 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Center Hole Diameter | 2.625 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| A56-170 PRIMARY | Goodrich Corporation (USA) |
NSN 5330-00-180-4166 is a Retainer,packing, manufactured by Goodrich Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-180-4166 has 1 manufacturer part number on file: A56-170 (Goodrich Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-813-8663. Verify interchangeability with system specifications before substitution.
Key specifications for A56-170: FSC Application Data: WHEEL,NOSE; Cross-Sectional Height: 0.280 INCHES NOMINAL IN; Body Recess Diameter: 2.875 INCHES NOMINAL IN; Cross-Sectional Shape Style: FLANGE. 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.