PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LS4319Beam,structural

Lockheed Martin Corp · NSN 9540-00-027-9218 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-027-9218 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-027-9218. Primary manufacturer part number: LS4319.
Features
  • Beam,structural — FSC 9540
  • Left Side Top Flange Thickness: 0.340 INCHES NOMINAL IN
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Fillet Radius Where Top Right Flange Joins Web Flange/leg: 0.090 INCHES NOMINAL IN
  • Right Top Inside Angle: 90.0 DEGREES NOMINAL
  • Nondefinitive Spec/std Data: 7075 ALLOY AND T6 TEMPER
  • Material: ALUMINUM ALLOY 7075
  • First Tip Inner Radius: 0.031 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-027-9218, is classified within Federal Supply Class 9540 (No Item Name Available) of the Metal Bars, Sheets, and Shapes group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-027-9218
Primary Part NumberLS4319
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Left Side Top Flange Thickness0.340 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.090 INCHES NOMINAL IN
Right Top Inside Angle90.0 DEGREES NOMINAL
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
MaterialALUMINUM ALLOY 7075
First Tip Inner Radius0.031 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED
Left Top Inside Angle90.0 DEGREES NOMINAL
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Weight Per Unit Measure1.145 POUNDS PER LINEAR FOOT LBS
Left Side Top Flange Distance to Center of Both Flanges1.000 INCHES NOMINAL IN
First Tip Outer Radius0.031 INCHES NOMINAL IN
Right Side Top Flange Thickness0.340 INCHES NOMINAL IN
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.090 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges1.000 INCHES NOMINAL IN
Top Flange Width2.000 INCHES NOMINAL IN
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
Second Tip Relationship to First TipIDENTICAL
Basic Shape StyleT SHAPE
Leg Thickness0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-190-422682312S41-159PC28 INTERCHANGEABLE
Gasket
Naval Ship Systems Command
5945-00-726-16859097 INTERCHANGEABLE
Relay,electromagnetic
B.c. Systems Inc. Dba Bc Systems Inc
6625-00-909-0455 INTERCHANGEABLE
Voltmeter
2940-00-986-027651515 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
4820-01-042-29809097 INTERCHANGEABLE
Seat,valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5962-01-287-41469097 INTERCHANGEABLE
Microcircuit,digital
National Semiconductor Corporation
5330-01-397-2217 INTERCHANGEABLE
Gasket
5998-01-498-2970009097 INTERCHANGEABLE
Circuit Card Assembly
Network Equipment Technologies Inc
6515-01-566-9402202.828 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
PA6839 Transtar Metals Corp (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
9097 Alcoa/reynolds Metals Company (USA)
60-4146 Transtar Metals Corp (USA)
LS4319 PRIMARY Lockheed Martin Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
Related Parts
5330-00-190-4226INTERCHANGEABLE
GASKET
82312S41-159PC28
5945-00-726-1685INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
9097
6625-00-909-0455INTERCHANGEABLE
VOLTMETER
2940-00-986-0276INTERCHANGEABLE
FILTER ELEMENT,FLUID
51515
4820-01-042-2980INTERCHANGEABLE
SEAT,VALVE
9097
5962-01-287-4146INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
9097
5330-01-397-2217INTERCHANGEABLE
GASKET
5998-01-498-2970INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
009097
6515-01-566-9402INTERCHANGEABLE
SCREW,BONE
202.828

Frequently Asked Questions

What is NSN 9540-00-027-9218?

NSN 9540-00-027-9218 is a Beam,structural, manufactured by Lockheed Martin Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-027-9218?

NSN 9540-00-027-9218 has 7 cross-referenced part numbers: PA6839 (Transtar Metals Corp), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC), 9097 (Alcoa/reynolds Metals Company), 60-4146 (Transtar Metals Corp), LS4319 (Lockheed Martin Corp) and 2 more.

What NSN replaces 9540-00-027-9218?

There are 9 known substitutes for 9540-00-027-9218: 5330-00-190-4226, 5945-00-726-1685, 6625-00-909-0455 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LS4319?

Key specifications for LS4319: Left Side Top Flange Thickness: 0.340 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Fillet Radius Where Top Right Flange Joins Web Flange/leg: 0.090 INCHES NOMINAL IN; Right Top Inside Angle: 90.0 DEGREES NOMINAL. 23 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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