The Packing Assembly, cataloged under National Stock Number 5330-01-175-1051, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-175-1051 |
| Primary Part Number | 721R8FT-160-T |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Intermediate Ring Quantity | 1 |
| Outside Diameter | 1.528 INCHES NOMINAL IN |
| Inside Diameter | 1.244 INCHES MINIMUM AND 1.256 INCHES MAXIMUM IN |
| Height | 0.297 INCHES NOMINAL IN |
| 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 |
|---|---|
| 721R8FT-160-T PRIMARY | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 721R8FT-160-T | 5/9 Secondary reference Palmetto Inc |
| 9008-02 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5330-01-175-1051 is a Packing Assembly, manufactured by Greene Tweed & Co Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-175-1051 has 1 manufacturer part number on file: 721R8FT-160-T (Greene Tweed & Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-286-4192. Verify interchangeability with system specifications before substitution.
Key specifications for 721R8FT-160-T: Intermediate Ring Quantity: 1; Outside Diameter: 1.528 INCHES NOMINAL IN; Inside Diameter: 1.244 INCHES MINIMUM AND 1.256 INCHES MAXIMUM IN; Height: 0.297 INCHES NOMINAL IN. 4 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.