NSN 1660-01-459-4237 · NIIN 014594237 · Part number MMS525 TYPE 1
The Boeing Company Div Defense · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 76301
Government record, cited
NSN 1660-01-459-4237 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-459-4237. Manufacturer of record part number: MMS525 TYPE 1.
Also searched as1660-01-459-4237 ·
1660014594237 ·
NIIN 014594237 ·
01-459-4237 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 76301 · MMS525 TYPE 1
Nearby stock numbers← 1660-01-459-3697 Duct Assembly, Air Conditioning-Heating, Aircraft
·
1660-01-459-8368 Duct Assembly, Air Conditioning-H →
Features
Insulation Blanket,thermal,aircr — FSC 1660
Layer Environmental Protection: RESIN TREATED LOCATION NOT OTHERWISE SPECIFIED
Material: GLASS LAYER
Material: RESIN NATURAL OR RESIN SYNTHETIC COATING
1 manufacturer part number on file
Manufacturer of record: The Boeing Company Div Defense
Identification
NSN: 1660-01-459-4237
NIIN: 014594237
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: MMS525 TYPE 1
Manufacturer: The Boeing Company Div Defense
General Description
The Insulation Blanket,thermal,aircr, cataloged under National Stock Number 1660-01-459-4237, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 3 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-459-4237
Primary Part Number
MMS525 TYPE 1
Item Name
Insulation Blanket,thermal,aircr
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-006-4472
FLANGE,VALVE BODY
1660-00-009-5646
ADAPTER ASSEMBLY,BELLOWS
1660-00-019-8389
1660-00-019-8389 · Item name not on file
1660-00-019-8399
1660-00-019-8399 · Item name not on file
1660-00-031-5285
1660-00-031-5285 · Item name not on file
1660-00-302-4390
PISTON,REGULATING V
1660-00-441-0575
PISTON
1660-01-601-0729
ETHERNET SWITCH
Frequently Asked Questions
What is NSN 1660-01-459-4237?
NSN 1660-01-459-4237 is a Insulation Blanket,thermal,aircr, manufactured by The Boeing Company Div Defense, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-459-4237?
NSN 1660-01-459-4237 has 1 manufacturer part number on file: MMS525 TYPE 1 (The Boeing Company Div Defense).
What are the specifications of MMS525 TYPE 1?
Key specifications for MMS525 TYPE 1: Layer Environmental Protection: RESIN TREATED LOCATION NOT OTHERWISE SPECIFIED; Special Features: USED ON F-15 AIRCRAFT; Part Name Assigned by Controlling Agency: FIBERGLASS CLOTH; Material: GLASS LAYER. 3 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-459-4237 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.