PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21612Seal Assembly,shaft,spring Loade

Coffin Turbo Pump Inc · NSN 4320-01-447-6603 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-447-6603 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-447-6603. Primary manufacturer part number: 21612.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Coffin Turbo Pump Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-447-6603, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Coffin Turbo Pump Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersCoffin Turbo Pump Inc (CAGE 0APJ5)
Technical Specifications
ParameterValue
NSN4320-01-447-6603
Primary Part Number21612
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCoffin Turbo Pump Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5977-00-038-1499 INTERCHANGEABLE
Brush,electrical Contact
5315-00-089-010721612 INTERCHANGEABLE
Pin,straight,headless
Unison Industries Llc
2805-00-423-3278691583 INTERCHANGEABLE
Insert,engine Valve Seat
Briggs and Stratton Corp
5365-00-514-25016166350 INTERCHANGEABLE
Shim
U S Army Tank Automotive Command Amsta-Im-Mm
4820-00-563-6316216-12 INTERCHANGEABLE
Disk,valve
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5910-00-643-9306 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5310-00-687-719921612 INTERCHANGEABLE
Washer,lock
Industrial Technologies and Services Llc
5950-01-068-5177240-0873-020 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3110-01-282-6106216-1-22 INTERCHANGEABLE
Ball,bearing
Columbus Jack Corporation Div Columbus Jack
Cross-Reference Index
Part NumberManufacturer
21612-2 Coffin Turbo Pump Inc (USA)
21612 PRIMARY Coffin Turbo Pump Inc (USA)
Related Parts
5977-00-038-1499INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5315-00-089-0107INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
21612
2805-00-423-3278INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
691583
5365-00-514-2501INTERCHANGEABLE
SHIM
6166350
4820-00-563-6316INTERCHANGEABLE
DISK,VALVE
216-12
5910-00-643-9306INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5310-00-687-7199INTERCHANGEABLE
WASHER,LOCK
21612
5950-01-068-5177INTERCHANGEABLE
COIL,RADIO FREQUENCY
240-0873-020
3110-01-282-6106INTERCHANGEABLE
BALL,BEARING
216-1-22

Frequently Asked Questions

What is NSN 4320-01-447-6603?

NSN 4320-01-447-6603 is a Seal Assembly,shaft,spring Loade, manufactured by Coffin Turbo Pump Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-447-6603?

NSN 4320-01-447-6603 has 2 cross-referenced part numbers: 21612-2 (Coffin Turbo Pump Inc), 21612 (Coffin Turbo Pump Inc).

What NSN replaces 4320-01-447-6603?

There are 9 known substitutes for 4320-01-447-6603: 5977-00-038-1499, 5315-00-089-0107, 2805-00-423-3278 and 6 more. Verify interchangeability with system specifications before substitution.

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