The Spark Gap, cataloged under National Stock Number 6625-00-421-3661, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-00-421-3661 |
| Item Name | Spark Gap |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Status | ACTIVE |
| Overall Diameter | 0.525 INCHES NOMINAL IN |
| Gap Type | NONROTARY |
| Mounting Configuration | TWO 0.040 IN. DIA PINS 1.125 IN. LG SPACED 0.250 IN. CENTER TO CENTER IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | V |
| Weight | 0.0400 lbs |
| Cube | 0.0040 cu ft |
| Reference | Meaning |
|---|---|
| SGSP150 | 3/9 Design control — primary reference Heico Ohmite Llc Dba Ohmite Mfg Co Inc |
| 2928048-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 6625-00-421-3661 is a Spark Gap, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
Key specifications for 6625-00-421-3661: Overall Diameter: 0.525 INCHES NOMINAL IN; Gap Type: NONROTARY; Overall Length: 2.400 INCHES NOMINAL IN; Mounting Configuration: TWO 0.040 IN. DIA PINS 1.125 IN. LG SPACED 0.250 IN. CENTER TO CENTER IN. 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.