The Gasket, cataloged under National Stock Number 5330-00-235-9550, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-235-9550 |
| Primary Part Number | 21TD249 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.135 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Style Designator | CIRCULAR |
| Material Document and Classification | MIL-C-6183,TY 1,CL 1,GR C MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 7.940 INCHES NOMINAL IN |
| Aperture Diameter | 2.605 INCHES MINIMUM AND 2.645 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC AND CORK 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 |
|---|---|
| 21TD249 PRIMARY | Oshkosh Defense Llc (USA) |
| 201471BB | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| 21TD249 | 5/9 Secondary reference Oshkosh Corp |
| 201471BB | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5330-00-235-9550 is a Gasket, manufactured by Oshkosh Defense Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-235-9550 has 2 manufacturer part numbers on file: 21TD249 (Oshkosh Defense Llc), 201471BB (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for 21TD249: Cross-Sectional Thickness: 0.135 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL; Style Designator: CIRCULAR; Material Document and Classification: MIL-C-6183,TY 1,CL 1,GR C MIL SPEC ALL MATERIAL RESPONSES OVERALL. 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.