The Yig,preselector, cataloged under National Stock Number 5865-01-014-2724, is classified within Federal Supply Class 5865 (Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Caes Systems Llc Div Missile Systems Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5865-01-014-2724 |
| Primary Part Number | WJ-643-21 |
| Item Name | Yig,preselector |
| FSC / FSG | 5865 / 58 — Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment |
| Manufacturer | Caes Systems Llc Div Missile Systems Division |
| Status | ACTIVE |
| General Characteristics Item Description | 2.380 IN. O/A LG,2.250 IN. W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| WJ-643-21 PRIMARY | Caes Systems Llc Div Missile Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 253479-001 | 5/9 Secondary reference Watkins-Johnson Co |
| 226525-000 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5865-01-014-2724 is a Yig,preselector, manufactured by Caes Systems Llc Div Missile Systems Division, classified under FSC 5865, Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment. Status: active.
NSN 5865-01-014-2724 has 1 manufacturer part number on file: WJ-643-21 (Caes Systems Llc Div Missile Systems Division).
Key specifications for WJ-643-21: General Characteristics Item Description: 2.380 IN. O/A LG,2.250 IN. W IN; End Item Identification: COUNTERMEASURE SET AN/ALR-56. 1 specification is 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.
NSN 5865-01-014-2724 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.