PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12276Diaphragm Assembly

Grimes Aerospace Company · NSN 1660-00-780-6223 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-780-6223 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-780-6223. Primary manufacturer part number: 12276.
Features
  • Diaphragm Assembly — FSC 1660
  • 1 verified cross-reference
  • Primary manufacturer: Grimes Aerospace Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diaphragm Assembly, cataloged under National Stock Number 1660-00-780-6223, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Grimes Aerospace Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm Assembly
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersGrimes Aerospace Company (CAGE 72914)
Technical Specifications
ParameterValue
NSN1660-00-780-6223
Primary Part Number12276
Item NameDiaphragm Assembly
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerGrimes Aerospace Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-073-043412276 INTERCHANGEABLE
Packing,preformed
Funk Mfg Co Sub of Deere and Co
3110-00-155-9618056-4 INTERCHANGEABLE
Bearing,ball,annular
Lockheed Martin Corporation Div Rms - Mitchel Field
1560-00-210-933612276 INTERCHANGEABLE
Fairing Assembly,fr
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5930-00-369-8362 INTERCHANGEABLE
Switch Section,rotary
5120-00-723-6833ET10 INTERCHANGEABLE
Extractor,screw Thread Insert
Helical Wire Inc
2915-00-732-539012317B INTERCHANGEABLE
Spraybar,main
Collins Engine Nozzles, Inc
5320-00-800-57046L4141-09 INTERCHANGEABLE
Rivet,tubular
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-00-880-35395672052 INTERCHANGEABLE
Clamp,hose
Tridon Tennessee Inc
5120-01-045-489512276 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
4320-01-055-5911 INTERCHANGEABLE
Pump,rotary
Cross-Reference Index
Part NumberManufacturer
12276 PRIMARY Grimes Aerospace Company (USA)
Related Parts
5330-00-073-0434INTERCHANGEABLE
PACKING,PREFORMED
12276
3110-00-155-9618INTERCHANGEABLE
BEARING,BALL,ANNULAR
056-4
1560-00-210-9336INTERCHANGEABLE
FAIRING ASSEMBLY,FR
12276
5930-00-369-8362INTERCHANGEABLE
SWITCH SECTION,ROTARY
5120-00-723-6833INTERCHANGEABLE
EXTRACTOR,SCREW THREAD INSERT
ET10
2915-00-732-5390INTERCHANGEABLE
SPRAYBAR,MAIN
12317B
5320-00-800-5704INTERCHANGEABLE
RIVET,TUBULAR
6L4141-09
4730-00-880-3539INTERCHANGEABLE
CLAMP,HOSE
5672052
5120-01-045-4895INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
12276
4320-01-055-5911INTERCHANGEABLE
PUMP,ROTARY
6525-01-574-4847INTERCHANGEABLE
POWER SUPPLY,ERASER,COMPUTED RAD
900-0029

Frequently Asked Questions

What is NSN 1660-00-780-6223?

NSN 1660-00-780-6223 is a Diaphragm Assembly, manufactured by Grimes Aerospace Company, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-780-6223?

NSN 1660-00-780-6223 has 1 cross-referenced part number: 12276 (Grimes Aerospace Company).

What NSN replaces 1660-00-780-6223?

There are 11 known substitutes for 1660-00-780-6223: 5330-00-073-0434, 3110-00-155-9618, 1560-00-210-9336 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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