The Illuminator Assembly, cataloged under National Stock Number 4470-00-157-0873, is classified within Federal Supply Class 4470 (Nuclear Reactors) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Clark-Reliance Llc Dba Jerguson Gage & Valve. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4470-00-157-0873 |
| Primary Part Number | A15237 |
| Item Name | Illuminator Assembly |
| FSC / FSG | 4470 / 44 — Nuclear Reactors |
| Manufacturer | Clark-Reliance Llc Dba Jerguson Gage & Valve |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTERACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| A15237 | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
| Reference | Meaning |
|---|---|
| E-292, REV H, ASSY A-15237 | 5/1 Secondary reference Clark-Reliance Llc Dba Jerguson Gage & Valve |
| E290PTA15237 | 3/1 Design control — primary reference Clark-Reliance Llc Dba Jerguson Gage & Valve |
NSN 4470-00-157-0873 is a Illuminator Assembly, manufactured by Clark-Reliance Llc Dba Jerguson Gage & Valve, classified under FSC 4470, Nuclear Reactors. Status: active.
NSN 4470-00-157-0873 has 1 manufacturer part number on file: A15237 (Clark-Reliance Llc Dba Jerguson Gage & Valve).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-319-1037, 5998-01-327-9917. Verify interchangeability with system specifications before substitution.
Key specifications for A15237: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTERACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 2 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.
NSN 4470-00-157-0873 has DEMIL Code F. 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.