The Seal,ring, cataloged under National Stock Number 6640-01-528-8415, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Becton, Dickinson and Co Dba Becton Dickinson & Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 6640-01-528-8415 |
| Primary Part Number | 421321 |
| Item Name | Seal,ring |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Becton, Dickinson and Co Dba Becton Dickinson & Co |
| Status | ACTIVE |
| 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 |
|---|---|
| 421321 PRIMARY | Becton, Dickinson and Co Dba Becton Dickinson & Co (USA) |
| Reference | Meaning |
|---|---|
| 42022503 | 5/1 Secondary reference Becton Dickinson and Co Primary Care Diagnostics Div |
| LL-H58-3169 | 5/1 Secondary reference Naval Medical Material Support Command Detachment |
| 22-293278 | 5/9 Secondary reference Fisher Scientific Company L.l.c. |
NSN 6640-01-528-8415 is a Seal,ring, manufactured by Becton, Dickinson and Co Dba Becton Dickinson & Co, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-528-8415 has 1 manufacturer part number on file: 421321 (Becton, Dickinson and Co Dba Becton Dickinson & Co).
2 possible matches (shared part number, not a government interchangeability claim): 4210-01-541-9993, 6530-01-695-0791. Verify interchangeability with system specifications before substitution.
Key specifications for 421321: End Item Identification: 6640015288408. 0 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.