PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

156-1Plate,grease Seal,l

Textron Aviation Inc · NSN 1620-00-250-4658 · FSC 1620 · No Item Name Available
Verified by PartsTable
NSN 1620-00-250-4658 — this item is cataloged by the U.S. Government under National Stock Number 1620-00-250-4658. Primary manufacturer part number: 156-1.
Features
  • Plate,grease Seal,l — FSC 1620
  • 2 verified cross-references
  • Primary manufacturer: Textron Aviation Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Plate,grease Seal,l, cataloged under National Stock Number 1620-00-250-4658, is classified within Federal Supply Class 1620 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Textron Aviation Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePlate,grease Seal,l
FSC / FSG1620 — No Item Name Available (FSG 16)
ManufacturersCessna Aircraft Company Dba Textron Aviation (CAGE 71379); Textron Aviation Inc (CAGE 7EK50)
Technical Specifications
ParameterValue
NSN1620-00-250-4658
Primary Part Number156-1
Item NamePlate,grease Seal,l
FSC / FSG1620 / 16 — No Item Name Available
ManufacturerTextron Aviation Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-063-9059 INTERCHANGEABLE
Gasket
6510-00-100-16121561H INTERCHANGEABLE
Pad,foam,surgical
3m Company Div Health Care Business
5310-00-167-0721MS35333-41 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5840-00-197-01791561 INTERCHANGEABLE
Roller,feed Drive
Gifft T H Co Inc
5930-00-259-9550724542 INTERCHANGEABLE
Switch,rotary
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-554-7397MS21921-6W INTERCHANGEABLE
Nut,tube Coupling
Sae International Dba Sae International
5340-00-598-70991561 INTERCHANGEABLE
Bumper
Atlantic India Rubber Co Inc
5895-00-644-5712 INTERCHANGEABLE
Converter,frequency,electronic
5330-00-737-26121561 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5940-00-739-74631561 INTERCHANGEABLE
Terminal,lug
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Cross-Reference Index
Part NumberManufacturer
156-1 Cessna Aircraft Company Dba Textron Aviation (USA)
156-1 PRIMARY Textron Aviation Inc (USA)
Related Parts
5330-00-063-9059INTERCHANGEABLE
GASKET
6510-00-100-1612INTERCHANGEABLE
PAD,FOAM,SURGICAL
1561H
5310-00-167-0721INTERCHANGEABLE
WASHER,LOCK
MS35333-41
5840-00-197-0179INTERCHANGEABLE
ROLLER,FEED DRIVE
1561
5930-00-259-9550INTERCHANGEABLE
SWITCH,ROTARY
724542
4730-00-554-7397INTERCHANGEABLE
NUT,TUBE COUPLING
MS21921-6W
5340-00-598-7099INTERCHANGEABLE
BUMPER
1561
5895-00-644-5712INTERCHANGEABLE
CONVERTER,FREQUENCY,ELECTRONIC
5330-00-737-2612INTERCHANGEABLE
SEAL,PLAIN ENCASED
1561
5940-00-739-7463INTERCHANGEABLE
TERMINAL,LUG
1561
6240-00-939-5493INTERCHANGEABLE
LAMP,INCANDESCENT
6640-01-070-7305INTERCHANGEABLE
FILLING DEVICE,BUCKET
1561

Frequently Asked Questions

What is NSN 1620-00-250-4658?

NSN 1620-00-250-4658 is a Plate,grease Seal,l, manufactured by Textron Aviation Inc, classified under FSC 1620 (No Item Name Available). Status: active.

What are the part numbers for NSN 1620-00-250-4658?

NSN 1620-00-250-4658 has 2 cross-referenced part numbers: 156-1 (Cessna Aircraft Company Dba Textron Aviation), 156-1 (Textron Aviation Inc).

What NSN replaces 1620-00-250-4658?

There are 12 known substitutes for 1620-00-250-4658: 5330-00-063-9059, 6510-00-100-1612, 5310-00-167-0721 and 9 more. Verify interchangeability with system specifications before substitution.

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