Foam Insulation-Ballistic, Rigid1680-01-623-5022

NSN 1680-01-623-5022 · NIIN 016235022 · Part number 44745K21

Mcmaster-Carr Supply Co · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 39428

Government record, cited

NSN 1680-01-623-5022 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-623-5022. Manufacturer of record part number: 44745K21.

Also searched as 1680-01-623-5022 · 1680016235022 · NIIN 016235022 · 01-623-5022 · FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 39428 · 44745K21

Nearby stock numbers ← 1680-01-623-5017 Foam Insulation-Ballistic, Rigid · 1680-01-623-5653 High Temp Vpp Servo →

Features

Foam Insulation-Ballistic,rigid — FSC 1680
1 manufacturer part number on file
Manufacturer of record: Mcmaster-Carr Supply Co

Identification

NSN: 1680-01-623-5022
NIIN: 016235022
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 44745K21
Manufacturer: Mcmaster-Carr Supply Co

General Description

The Foam Insulation-Ballistic,rigid, cataloged under National Stock Number 1680-01-623-5022, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Mcmaster-Carr Supply Co. The record lists 1 manufacturer part number 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.

Catalog Facts

Item Name	Foam Insulation-Ballistic,rigid
FSC / FSG	1680 — Miscellaneous Aircraft Accessories and Components (FSG 16)
Manufacturers	Mcmaster-Carr Supply Co (CAGE 39428)

Technical Specifications

Parameter	Value
NSN	1680-01-623-5022
Primary Part Number	44745K21
Item Name	Foam Insulation-Ballistic,rigid
FSC / FSG	1680 / 16 — Miscellaneous Aircraft Accessories and Components
Manufacturer	Mcmaster-Carr Supply Co
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5640-01-661-999944745K21 POSSIBLE MATCH

INSULATION SLEEVE,T

Possible match (shared part number)Mcmaster-Carr Supply Co

Cross-Reference Index

Part Number	Manufacturer
44745K21 PRIMARY	Mcmaster-Carr Supply Co (USA)

Related Parts

5640-01-661-9999POSSIBLE MATCH

INSULATION SLEEVE,T

44745K21

Frequently Asked Questions

What is NSN 1680-01-623-5022?

NSN 1680-01-623-5022 is a Foam Insulation-Ballistic,rigid, manufactured by Mcmaster-Carr Supply Co, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What part numbers are listed for NSN 1680-01-623-5022?

NSN 1680-01-623-5022 has 1 manufacturer part number on file: 44745K21 (Mcmaster-Carr Supply Co).

What NSN replaces 1680-01-623-5022?

1 possible match (shared part number, not a government interchangeability claim): 5640-01-661-9999. Verify interchangeability with system specifications before substitution.

Is NSN 1680-01-623-5022 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

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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