PartsTable TECHNICAL DATA SHEET

NSN 6665-01-657-9567Government record, cited

Case, Radiac Set6665-01-657-9567

NSN 6665-01-657-9567 · NIIN 016579567 · Part number 8623255

Naval Sea Systems Command · FSC 6665 — Hazard-detecting Instruments and Apparatus · FSG 66 — Instruments and Laboratory Equipment · CAGE 53711

Government record, cited

NSN 6665-01-657-9567 — this item is cataloged by the U.S. Government under National Stock Number 6665-01-657-9567. Manufacturer of record part number: 8623255.

Also searched as 6665-01-657-9567 · 6665016579567 · NIIN 016579567 · 01-657-9567 · FSC 6665 Hazard-detecting Instruments and Apparatus · CAGE 53711 · 8623255 · 8623255 (IM-231A/PD W/FOAM INSER

Nearby stock numbers ← 6665-01-657-8959 Radioactive Test Sample · 6665-01-658-0007 Indicator, Carbon Monoxide →

Features

Case,radiac Set — FSC 6665
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command

Identification

NSN: 6665-01-657-9567
NIIN: 016579567
FSC: 6665 — Hazard-detecting Instruments and Apparatus
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 8623255
Manufacturer: Naval Sea Systems Command

General Description

The Case,radiac Set, cataloged under National Stock Number 6665-01-657-9567, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Case,radiac Set
FSC / FSG	6665 — Hazard-detecting Instruments and Apparatus (FSG 66)
Manufacturers	Naval Sea Systems Command (CAGE 53711); Tms Cases Inc. Dba Mcs Defense (CAGE 4E8V7)

Technical Specifications

Parameter	Value
NSN	6665-01-657-9567
Primary Part Number	8623255
Item Name	Case,radiac Set
FSC / FSG	6665 / 66 — Hazard-detecting Instruments and Apparatus
Manufacturer	Naval Sea Systems Command
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL D — Destroy Item
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
8623255 PRIMARY	Naval Sea Systems Command (USA)
8623255 (IM-231A/PD W/FOAM INSER PRIMARY	Tms Cases Inc. Dba Mcs Defense (USA)

No interchangeability data on file.

Other items in FSC 6665 — Hazard-detecting Instruments and Apparatus

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

6665-00-001-2316

6665-00-001-2316 · Item name not on file

6665-00-001-5355

RADIACMETER

6665-00-006-0951

6665-00-006-0951 · Item name not on file

6665-00-007-6584

6665-00-007-6584 · Item name not on file

6665-00-008-8883

6665-00-008-8883 · Item name not on file

6665-00-009-9478

COUNTER,RATEMETER

6665-00-009-9492

RADIACMETER

6665-00-010-0061

6665-00-010-0061 · Item name not on file

Frequently Asked Questions

What is NSN 6665-01-657-9567?

NSN 6665-01-657-9567 is a Case,radiac Set, manufactured by Naval Sea Systems Command, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.

What part numbers are listed for NSN 6665-01-657-9567?

NSN 6665-01-657-9567 has 2 manufacturer part numbers on file: 8623255 (Naval Sea Systems Command), 8623255 (IM-231A/PD W/FOAM INSER (Tms Cases Inc. Dba Mcs Defense).

Is NSN 6665-01-657-9567 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 6665-01-657-9567?

NSN 6665-01-657-9567 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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