The Seal Ring,metal, cataloged under National Stock Number 5330-01-236-5688, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-236-5688 |
| Primary Part Number | 7218MR-160-5770 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Cross-Sectional Shape Style | STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL |
| Inside Diameter | 1.231 INCHES NOMINAL IN |
| Radial Wall Thickness | 0.1350 INCHES MINIMUM AND 0.1430 INCHES MAXIMUM IN |
| Ring Style | CONTRACTING CONCENTRIC |
| 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 |
|---|---|
| 7218MR-160-5770 PRIMARY | Greene Tweed & Co Inc (USA) |
| S34700-218G13S | Trelleborg Sealing Solutions Us, Inc. (USA) |
| 654-131-9218 | Proponent, Inc. Dba Proponent (USA) |
| Reference | Meaning |
|---|---|
| 7218MR-160-5770 | 5/9 Secondary reference Palmetto Inc |
| 654-131-9218 | 7/2 Vendor item drawing reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 5330-01-236-5688 is a Seal Ring,metal, manufactured by Greene Tweed & Co Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-236-5688 has 3 manufacturer part numbers on file: 7218MR-160-5770 (Greene Tweed & Co Inc), S34700-218G13S (Trelleborg Sealing Solutions Us, Inc.), 654-131-9218 (Proponent, Inc. Dba Proponent).
Key specifications for 7218MR-160-5770: Overall Width: 0.1800 INCHES NOMINAL IN; Cross-Sectional Shape Style: STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL; Inside Diameter: 1.231 INCHES NOMINAL IN; Radial Wall Thickness: 0.1350 INCHES MINIMUM AND 0.1430 INCHES MAXIMUM 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.