The Seal,plain Encased, cataloged under National Stock Number 5330-00-526-8121, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Garwood/feller Inc Garwood Winch Div. Government technical data includes 8 specifications, 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. 3 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 | 5330-00-526-8121 |
| Primary Part Number | M306647 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Garwood/feller Inc Garwood Winch Div |
| Status | ACTIVE |
| Seal Width | 0.188 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 1.687 INCHES NOMINAL IN |
| Accommodated Shaft Maximum Rated Speed | 3000 FEET PER MINUTE FT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 1.250 INCHES NOMINAL IN |
| Material | STEEL CASE |
| Material | RUBBER SYNTHETIC SEALING ELEMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5330-00-526-8121 is a Seal,plain Encased, manufactured by Garwood/feller Inc Garwood Winch Div, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-526-8121 has 2 manufacturer part numbers on file: 64382 (Dana Automotive Systems Group, Llc Dba Dana Sealing Products), M306647 (Garwood/feller Inc Garwood Winch Div).
3 possible matches (shared part number, not a government interchangeability claim): 2530-00-930-7718, 3020-01-296-9975, 6240-01-570-5976. Verify interchangeability with system specifications before substitution.
Key specifications for M306647: Seal Width: 0.188 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Housing Bore Diameter: 1.687 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 3000 FEET PER MINUTE FT. 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.