PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PA16421Structural Section,special Shape

Transtar Metals Corp · NSN 9540-01-070-1786 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-070-1786 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-070-1786. Primary manufacturer part number: PA16421.
Features
  • Structural Section,special Shape — FSC 9540
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Material: ALUMINUM ALLOY 7075
  • Fabrication Method: EXTRUDED
  • Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
  • Nondefinitive Spec/std Data: T6 TEMPER
  • Heat Treatment: T-6 SOLUTION HEAT TREATED
  • Weight Per Unit Measure: 0.527 POUNDS PER LINEAR FOOT LBS
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Structural Section,special Shape, cataloged under National Stock Number 9540-01-070-1786, 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 Transtar Metals Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-01-070-1786
Primary Part NumberPA16421
Item NameStructural Section,special Shape
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerTranstar Metals Corp
StatusACTIVE
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
MaterialALUMINUM ALLOY 7075
Fabrication MethodEXTRUDED
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std DataT6 TEMPER
Heat TreatmentT-6 SOLUTION HEAT TREATED
Weight Per Unit Measure0.527 POUNDS PER LINEAR FOOT LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5940-00-504-4703MS25036-104 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
6105-00-575-121151238 INTERCHANGEABLE
Seat,motor Brush Ri
L3harris Technologies, Inc Div Space & Airborne Systems
4920-00-838-6215 INTERCHANGEABLE
Component Module
2530-00-874-2923 INTERCHANGEABLE
Plate,shoe Guide
2925-00-877-3610 INTERCHANGEABLE
Connnector
2540-00-936-703670650365 INTERCHANGEABLE
Cushion,seat Back,vehicular
The Wise Company Llc
5330-01-078-3660 INTERCHANGEABLE
Seal
4320-01-238-4226 INTERCHANGEABLE
Connector,fluid,pump
4820-01-238-6979 INTERCHANGEABLE
Valve,check
3120-01-357-8112 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
PA16421 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
32594 Alcoa/reynolds Metals Company (USA)
51238 Lockheed Martin Corp (USA)
60-19880 Transtar Metals Corp (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
LS5833 Lockheed Martin Corp (USA)
Related Parts
5940-00-504-4703INTERCHANGEABLE
TERMINAL,LUG
MS25036-104
6105-00-575-1211INTERCHANGEABLE
SEAT,MOTOR BRUSH RI
51238
4920-00-838-6215INTERCHANGEABLE
COMPONENT MODULE
2530-00-874-2923INTERCHANGEABLE
PLATE,SHOE GUIDE
2925-00-877-3610INTERCHANGEABLE
CONNNECTOR
2540-00-936-7036INTERCHANGEABLE
CUSHION,SEAT BACK,VEHICULAR
70650365
5330-01-078-3660INTERCHANGEABLE
SEAL
4320-01-238-4226INTERCHANGEABLE
CONNECTOR,FLUID,PUMP
4820-01-238-6979INTERCHANGEABLE
VALVE,CHECK
3120-01-357-8112INTERCHANGEABLE
BEARING,SLEEVE
5330-01-516-5694INTERCHANGEABLE
RETAINER,PACKING
H765-1302-F3-2

Frequently Asked Questions

What is NSN 9540-01-070-1786?

NSN 9540-01-070-1786 is a Structural Section,special Shape, manufactured by Transtar Metals Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-01-070-1786?

NSN 9540-01-070-1786 has 8 cross-referenced part numbers: PA16421 (Transtar Metals Corp), AMS-QQ-A-200/11 (Sae International Dba Sae International), 32594 (Alcoa/reynolds Metals Company), 51238 (Lockheed Martin Corp), 60-19880 (Transtar Metals Corp) and 3 more.

What NSN replaces 9540-01-070-1786?

There are 11 known substitutes for 9540-01-070-1786: 5940-00-504-4703, 6105-00-575-1211, 4920-00-838-6215 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PA16421?

Key specifications for PA16421: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Material: ALUMINUM ALLOY 7075; Fabrication Method: EXTRUDED; Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE. 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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