PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28731Beam,structural

Alcoa/reynolds Metals Company · NSN 9540-01-014-1301 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-014-1301 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-014-1301. Primary manufacturer part number: 28731.
Features
  • Beam,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • Material: ALUMINUM ALLOY 5456
  • Leg Thickness: 0.324 INCHES NOMINAL IN
  • Right Side Top Flange Distance to Center of Both Flanges: 2.500 INCHES NOMINAL IN
  • Weight Per Unit Measure: 5.745 POUNDS PER LINEAR FOOT LBS
  • Top Flange Width: 5.000 INCHES NOMINAL IN
  • Left Top Inside Angle: 90.0 DEGREES NOMINAL
Applications
  • Applications requiring Aluminum Alloy 5456 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-01-014-1301, 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 Alcoa/reynolds Metals Company. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-01-014-1301
Primary Part Number28731
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAlcoa/reynolds Metals Company
StatusACTIVE
Fabrication MethodEXTRUDED
MaterialALUMINUM ALLOY 5456
Leg Thickness0.324 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges2.500 INCHES NOMINAL IN
Weight Per Unit Measure5.745 POUNDS PER LINEAR FOOT LBS
Top Flange Width5.000 INCHES NOMINAL IN
Left Top Inside Angle90.0 DEGREES NOMINAL
Material Document and ClassificationAMS-QQ-A-200/7 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std DataH111 TEMPER
Right Side Top Flange Thickness0.352 INCHES NOMINAL IN
Heat TreatmentH-111 STRAIN HARDENED
Right Top Inside Angle90.0 DEGREES NOMINAL
Left Side Top Flange Thickness0.352 INCHES NOMINAL IN
Left Side Top Flange Distance to Center of Both Flanges2.500 INCHES NOMINAL IN
Length20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT
Basic Shape StyleT SHAPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5920-00-090-08709000S6501-74062REVC INTERCHANGEABLE
Arrester,lightning
Naval Ship Systems Command
5365-00-373-269128731 INTERCHANGEABLE
Ring,calibrated Dia
Raytheon Company Dba Raytheon
5310-01-128-5010A-28731 INTERCHANGEABLE
Washer,special
Kollmorgen Corp
Cross-Reference Index
Part NumberManufacturer
28731 Alcoa/reynolds Metals Company (USA)
HT 271 Kaiser Aluminum and Chemical Corp (USA)
TT5495575 Spectrulite Consortium Inc (USA)
AMS-QQ-A-200/7 Society of Automotive Engineers Inc (USA)
QQ-A-200/7 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/7 Sae International Dba Sae International (USA)
28731 Ryerson Joseph T and Son Inc Sub of Inland Steel Corp (USA)
Related Parts
5920-00-090-0870INTERCHANGEABLE
ARRESTER,LIGHTNING
9000S6501-74062REVC
5365-00-373-2691INTERCHANGEABLE
RING,CALIBRATED DIA
28731
5310-01-128-5010INTERCHANGEABLE
WASHER,SPECIAL
A-28731

Frequently Asked Questions

What is NSN 9540-01-014-1301?

NSN 9540-01-014-1301 is a Beam,structural, manufactured by Alcoa/reynolds Metals Company, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-01-014-1301?

NSN 9540-01-014-1301 has 7 cross-referenced part numbers: 28731 (Alcoa/reynolds Metals Company), HT 271 (Kaiser Aluminum and Chemical Corp), TT5495575 (Spectrulite Consortium Inc), AMS-QQ-A-200/7 (Society of Automotive Engineers Inc), QQ-A-200/7 (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 9540-01-014-1301?

There are 3 known substitutes for 9540-01-014-1301: 5920-00-090-0870, 5365-00-373-2691, 5310-01-128-5010. Verify interchangeability with system specifications before substitution.

What are the specifications of 28731?

Key specifications for 28731: Fabrication Method: EXTRUDED; Material: ALUMINUM ALLOY 5456; Leg Thickness: 0.324 INCHES NOMINAL IN; Right Side Top Flange Distance to Center of Both Flanges: 2.500 INCHES NOMINAL IN. 17 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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