The Packing,preformed, cataloged under National Stock Number 5330-01-283-2434, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Fm Af, Llc Dba American Fan Company. Government technical data includes 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-283-2434 |
| Primary Part Number | B4W-55912-3 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Material Document and Classification | MIL-C-882 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | FLANGE |
| Material | RUBBER CHLOROPRENE CLASS CR AND COTTON 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 |
|---|---|
| B4W-55912-3 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| 4W-55912-3 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
| R1-9303 PIECE 26 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
| 4W-55912-3 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| R1-9303 PIECE 26 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
NSN 5330-01-283-2434 is a Packing,preformed, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-283-2434 has 1 manufacturer part number on file: B4W-55912-3 (Fm Af, Llc Dba American Fan Company).
Key specifications for B4W-55912-3: Material Document and Classification: MIL-C-882 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: FLANGE; Material: RUBBER CHLOROPRENE CLASS CR AND COTTON OVERALL. 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.