The Packing Assembly, cataloged under National Stock Number 5330-01-644-6615, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Newmans Inc New Jersey Div. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-644-6615 |
| Primary Part Number | 2.50IN 21F-CB3-SC-77 PACKING |
| Item Name | Packing Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Newmans Inc New Jersey Div |
| Status | ACTIVE |
| Material | GRAPHITE 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 |
|---|---|
| 2.50IN 21F-CB3-SC-77 PACKING PRIMARY | Newmans Inc New Jersey Div (USA) |
| Reference | Meaning |
|---|---|
| N 1490-000 | D/9 Drawing number reference only Newmans Inc New Jersey Div |
NSN 5330-01-644-6615 is a Packing Assembly, manufactured by Newmans Inc New Jersey Div, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-644-6615 has 1 manufacturer part number on file: 2.50IN 21F-CB3-SC-77 PACKING (Newmans Inc New Jersey Div).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-644-6632. Verify interchangeability with system specifications before substitution.
Key specifications for 2.50IN 21F-CB3-SC-77 PACKING: Special Features: DIE FORMED GRAPHITE WITH BRAIDED GRAPHITE END RINGS; End Item Identification: NPS 2-4 CLASS 150 CAST CARBON STEEL FLG 21F-CB3-SC; Material: GRAPHITE OVERALL. 1 specification is 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.