NSN 1660-00-166-6476 · NIIN 001666476 · Part number 51D60
Grimes Aerospace Company · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 72914
Government record, cited
NSN 1660-00-166-6476 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-166-6476. Manufacturer of record part number: 51D60.
Also searched as1660-00-166-6476 ·
1660001666476 ·
NIIN 001666476 ·
00-166-6476 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 72914 · 51D60
General Characteristics Item Description: 1.812 IN. O/A DIA,0.656 IN. O/A LG,MATERIAL ALUMINUM IN
1 manufacturer part number on file
Manufacturer of record: Grimes Aerospace Company
Identification
NSN: 1660-00-166-6476
NIIN: 001666476
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 51D60
Manufacturer: Grimes Aerospace Company
General Description
The Cup,diaphragm, cataloged under National Stock Number 1660-00-166-6476, 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 Grimes Aerospace Company. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-00-166-6476
Primary Part Number
51D60
Item Name
Cup,diaphragm
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Grimes Aerospace Company
Status
ACTIVE
General Characteristics Item Description
1.812 IN. O/A DIA,0.656 IN. O/A LG,MATERIAL ALUMINUM IN
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 1660-00-166-6476?
NSN 1660-00-166-6476 is a Cup,diaphragm, manufactured by Grimes Aerospace Company, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-00-166-6476?
NSN 1660-00-166-6476 has 1 manufacturer part number on file: 51D60 (Grimes Aerospace Company).
What are the specifications of 51D60?
Key specifications for 51D60: General Characteristics Item Description: 1.812 IN. O/A DIA,0.656 IN. O/A LG,MATERIAL ALUMINUM IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 1660-00-166-6476 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.
What is the DEMIL code for NSN 1660-00-166-6476?
NSN 1660-00-166-6476 has DEMIL Code B. 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.