The Insulator,washer, cataloged under National Stock Number 5970-00-641-2856, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Wildfire Pacific Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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 | 5970-00-641-2856 |
| Primary Part Number | 110PC21 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Wildfire Pacific Inc |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.248 INCHES NOMINAL IN |
| Inside Diameter | 0.152 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC 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 |
NSN 5970-00-641-2856 is a Insulator,washer, manufactured by Wildfire Pacific Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-641-2856 has 3 manufacturer part numbers on file: 110PC21 (Wildfire Pacific Inc), Y1110 (Wildfire Pacific Inc), 109PC21 (Wildfire Pacific Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-364-0740. Verify interchangeability with system specifications before substitution.
Key specifications for 110PC21: Overall Height: 0.047 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.248 INCHES NOMINAL IN; Inside Diameter: 0.152 INCHES NOMINAL IN. 4 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.