PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1551AS555-1Window,observation

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 9330-01-297-3891 · FSC 9330 · No Item Name Available
Verified by PartsTable
NSN 9330-01-297-3891 — this item is cataloged by the U.S. Government under National Stock Number 9330-01-297-3891. Primary manufacturer part number: 1551AS555-1.
Features
  • Window,observation — FSC 9330
  • Material: PLASTIC ACRYLIC
  • Style Designator: SQUARE CORNERS
  • Overall Thickness: 0.250 INCHES NOMINAL IN
  • Material Transparency: CLEAR
  • 2 verified cross-references
  • Primary manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Applications
  • Applications requiring Plastic Acrylic construction
General Description

The Window,observation, cataloged under National Stock Number 9330-01-297-3891, is classified within Federal Supply Class 9330 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9330-01-297-3891
Primary Part Number1551AS555-1
Item NameWindow,observation
FSC / FSG9330 / 93 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
MaterialPLASTIC ACRYLIC
Style DesignatorSQUARE CORNERS
Overall Thickness0.250 INCHES NOMINAL IN
Material TransparencyCLEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5365-00-110-245766541 INTERCHANGEABLE
Spacer,ring
Parker Hannifin Corporation Div Hydraulic Systems Division
5360-00-182-5493 INTERCHANGEABLE
Spring,helical,compression
3455-01-025-983410061 INTERCHANGEABLE
Blade,band Saw,metal Cutting
L.s. Starrett Company (the) Div Tool Division
2530-01-414-126866541 INTERCHANGEABLE
Hub,wheel,vehicular
Tld Ace Corp Div Tld Ace
4730-01-424-088466541 INTERCHANGEABLE
Strainer Element,sediment
Spirax Sarco Inc Dba Spirax Sarco
Cross-Reference Index
Part NumberManufacturer
66541 Conductive Systems, Inc. Dba Conductive Systems Inc (USA)
1551AS555-1 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
5365-00-110-2457INTERCHANGEABLE
SPACER,RING
66541
5360-00-182-5493INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3455-01-025-9834INTERCHANGEABLE
BLADE,BAND SAW,METAL CUTTING
10061
2530-01-414-1268INTERCHANGEABLE
HUB,WHEEL,VEHICULAR
66541
4730-01-424-0884INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
66541

Frequently Asked Questions

What is NSN 9330-01-297-3891?

NSN 9330-01-297-3891 is a Window,observation, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 9330 (No Item Name Available). Status: active.

What are the part numbers for NSN 9330-01-297-3891?

NSN 9330-01-297-3891 has 2 cross-referenced part numbers: 66541 (Conductive Systems, Inc. Dba Conductive Systems Inc), 1551AS555-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 9330-01-297-3891?

There are 5 known substitutes for 9330-01-297-3891: 5365-00-110-2457, 5360-00-182-5493, 3455-01-025-9834 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1551AS555-1?

Key specifications for 1551AS555-1: Overall Length: 10.630 INCHES NOMINAL IN; Material: PLASTIC ACRYLIC; Style Designator: SQUARE CORNERS; Special Features: ANTI-GLARE SURFACE ONE SIDE,EDGE GASKET. 7 total characteristics are documented in the Federal Logistics Information System.

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