PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-1378Angle,structural

Lockheed Martin Corporation Div Rotary and Mission Systems · NSN 9540-01-071-5883 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-071-5883 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-071-5883. Primary manufacturer part number: 2-1378.
Features
  • Angle,structural — FSC 9540
  • First Tip Radius: 0.063 INCHES NOMINAL IN
  • First Tip Style: RIGHT QUARTER RADIUS
  • Base Flange Thickness: 0.063 INCHES NOMINAL IN
  • Second Tip Style: UPPER RADIUS
  • Second Tip Radius: 0.063 INCHES NOMINAL IN
  • Basic Shape Style: ANGLE
  • Material: ALUMINUM ALLOY 2024
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-01-071-5883, 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 Corporation Div Rotary and Mission Systems. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-01-071-5883
Primary Part Number2-1378
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rotary and Mission Systems
StatusCANCELLED
First Tip Radius0.063 INCHES NOMINAL IN
First Tip StyleRIGHT QUARTER RADIUS
Base Flange Thickness0.063 INCHES NOMINAL IN
Second Tip StyleUPPER RADIUS
Second Tip Radius0.063 INCHES NOMINAL IN
Basic Shape StyleANGLE
MaterialALUMINUM ALLOY 2024
Heat TreatmentT-3511 SOLUTION HEAT TREATED
Fabrication MethodEXTRUDED
Nondefinitive Spec/std Data2024 ALLOY AND T3511 TEMPER
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Second Tip Relationship to First TipNOT IDENTICAL
Left Inside Angle90.0 DEGREES NOMINAL
Fillet Radius Where Left Flange Joins Base Flange0.063 INCHES NOMINAL IN
Left Side Flange Thickness0.063 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
9540-00-231-9921 INTERCHANGEABLE
Angle,structural
5330-00-641-4277600-701-9/16 INTERCHANGEABLE
Packing with Retainer
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
5305-00-724-5887MS51963-107 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5950-00-866-248621378 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
5930-00-913-2109PM21378 INTERCHANGEABLE
Switch,push
Mason Electric Co. Dba Mason Controls
5930-00-923-7743213-78 INTERCHANGEABLE
Switch,toggle
Pitney Bowes Inc.
9540-01-071-6540 INTERCHANGEABLE
Angle,structural
9540-01-106-7628 INTERCHANGEABLE
Angle,structural
9540-01-127-8708 INTERCHANGEABLE
Angle,structural
5930-01-417-629428279 INTERCHANGEABLE
Switch,sensitive
Banner Engineering Corp.
Cross-Reference Index
Part NumberManufacturer
2-1378 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
9540PL0901158 Jednolity Indeks Materialowy - Uniform Material Index (POL)
K10A16T3511 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
28279 Aluminum Co of America (USA)
AMS 10134-0601 Sae International Dba Sae International (USA)
AND10134-0601/QQ-A-200/3-T4 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
AMS 10134-0601 Society of Automotive Engineers Inc (USA)
MS14284E017 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
9540PL1909929 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
AND10134-0601 Airforce-Navy Aeronautical Design Standard
AND10134-0601/QQ-A-200/3-T3511 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
Related Parts
9540-00-231-9921INTERCHANGEABLE
ANGLE,STRUCTURAL
5330-00-641-4277INTERCHANGEABLE
PACKING WITH RETAINER
600-701-9/16
5305-00-724-5887INTERCHANGEABLE
SETSCREW
MS51963-107
5950-00-866-2486INTERCHANGEABLE
TRANSFORMER,POWER
21378
5930-00-913-2109INTERCHANGEABLE
SWITCH,PUSH
PM21378
5930-00-923-7743INTERCHANGEABLE
SWITCH,TOGGLE
213-78
9540-01-071-6540INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-106-7628INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-127-8708INTERCHANGEABLE
ANGLE,STRUCTURAL
5930-01-417-6294INTERCHANGEABLE
SWITCH,SENSITIVE
28279
1620-01-669-6310INTERCHANGEABLE
RETAINER,DISK BRAKE,AIRCRAFT
2-1378

Frequently Asked Questions

What is NSN 9540-01-071-5883?

NSN 9540-01-071-5883 is a Angle,structural, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-01-071-5883?

NSN 9540-01-071-5883 has 15 cross-referenced part numbers: 2-1378 (Lockheed Martin Corporation Div Rotary and Mission Systems), 9540PL0901158 (Jednolity Indeks Materialowy - Uniform Material Index), K10A16T3511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc), ASTM B221 (American Society for Testing and Materials Dba Astm International) and 10 more.

What NSN replaces 9540-01-071-5883?

There are 11 known substitutes for 9540-01-071-5883: 9540-00-231-9921, 5330-00-641-4277, 5305-00-724-5887 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-1378?

Key specifications for 2-1378: First Tip Radius: 0.063 INCHES NOMINAL IN; First Tip Style: RIGHT QUARTER RADIUS; Overall Height: 0.500 INCHES NOMINAL IN; Base Flange Thickness: 0.063 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-01-071-5883 still in active supply?

NSN 9540-01-071-5883 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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