The Seal,ring, cataloged under National Stock Number 5840-00-802-1657, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5840-00-802-1657 |
| Primary Part Number | 100257-1 |
| Item Name | Seal,ring |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 100257-1 PRIMARY | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
NSN 5840-00-802-1657 is a Seal,ring, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-00-802-1657 has 1 manufacturer part number on file: 100257-1 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-027-3209. Verify interchangeability with system specifications before substitution.
Key specifications for 100257-1: End Item Identification: AN/FPS-6. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.