The Packing,ring, cataloged under National Stock Number 5330-01-077-8027, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-077-8027 |
| Primary Part Number | 2811G4Y ITEM 10 |
| Item Name | Packing,ring |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| Status | ACTIVE |
| General Characteristics Item Description | ASBESTOS AND GRAPHITE |
| 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 |
|---|---|
| 58-300-2 | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 2811G4Y ITEM 10 PRIMARY | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| Reference | Meaning |
|---|---|
| 58-230 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2811G4YITEM 6 | 5/9 Secondary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
NSN 5330-01-077-8027 is a Packing,ring, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-077-8027 has 2 manufacturer part numbers on file: 58-300-2 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 2811G4Y ITEM 10 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).
4 possible matches (shared part number, not a government interchangeability claim): 3020-01-222-5304, 6515-01-488-8949, 1560-01-573-2442. Verify interchangeability with system specifications before substitution.
Key specifications for 2811G4Y ITEM 10: General Characteristics Item Description: ASBESTOS AND GRAPHITE. 1 specification is 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.