The Gasket, cataloged under National Stock Number 5330-01-641-5097, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-01-641-5097 |
| Primary Part Number | 21529421 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.625 INCHES NOMINAL IN |
| Aperture Diameter | 4.562 INCHES NOMINAL IN |
| Material | FIBER 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 |
|---|---|
| 21529421 PRIMARY | Fairbanks Morse, Llc (USA) |
| 21529421-1 | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 21529421-1 | 5/9 Secondary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
| 21529421 | 3/9 Design control — primary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
NSN 5330-01-641-5097 is a Gasket, manufactured by Fairbanks Morse, Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-641-5097 has 2 manufacturer part numbers on file: 21529421 (Fairbanks Morse, Llc), 21529421-1 (Fairbanks Morse, Llc).
Key specifications for 21529421: Cross-Sectional Thickness: 0.625 INCHES NOMINAL IN; Aperture Diameter: 4.562 INCHES NOMINAL IN; Special Features: AFTERCOOLER; INLET AND OUTLET; 6.0 INS SQUARE; End Item Identification: ENGINE,DIESEL P/N 251F18MS. 3 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.