PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LS320Stud,shouldered

Lockheed Martin Corp · NSN 5307-00-122-3457 · FSC 5307 · No Item Name Available
Verified by PartsTable
NSN 5307-00-122-3457 — this item is cataloged by the U.S. Government under National Stock Number 5307-00-122-3457. Primary manufacturer part number: LS320.
Features
  • Stud,shouldered — FSC 5307
  • Material: STEEL COMP 4130
  • Thread Direction: RIGHT-HAND STUD THREAD
  • Distance Across Flats: 0.375 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND NUT THREAD
  • Thread Length: 1.562 INCHES MAXIMUM NUT THREAD IN
  • Material Document and Classification: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE
  • Thread Quantity Per Inch: 28 STUD THREAD
Applications
  • Applications requiring Steel Comp 4130 construction
General Description

The Stud,shouldered, cataloged under National Stock Number 5307-00-122-3457, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 18 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5307-00-122-3457
Primary Part NumberLS320
Item NameStud,shouldered
FSC / FSG5307 / 53 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
MaterialSTEEL COMP 4130
Thread DirectionRIGHT-HAND STUD THREAD
Distance Across Flats0.375 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND NUT THREAD
Thread Length1.562 INCHES MAXIMUM NUT THREAD IN
Material Document and ClassificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE
Thread Quantity Per Inch28 STUD THREAD
Thread Quantity Per Inch28 NUT THREAD
Shoulder Length0.375 INCHES NOMINAL IN
Thread Series DesignatorUNF STUD THREAD
Style DesignatorSHOULDERED
Nominal Thread Size0.250 INCHES NUT THREAD IN
Thread Class3A STUD THREAD A
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNF NUT THREAD
Thread Class3A NUT THREAD A
Thread Length1.562 INCHES MAXIMUM STUD THREAD IN
Nominal Thread Size0.250 INCHES STUD THREAD IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5985-01-109-8833654VE4814-3 INTERCHANGEABLE
Isolator,radio Frequency Reflect
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
Cross-Reference Index
Part NumberManufacturer
LS320 PRIMARY Lockheed Martin Corp (USA)
ATT50173-582 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5985-01-109-8833INTERCHANGEABLE
ISOLATOR,RADIO FREQUENCY REFLECT
654VE4814-3

Frequently Asked Questions

What is NSN 5307-00-122-3457?

NSN 5307-00-122-3457 is a Stud,shouldered, manufactured by Lockheed Martin Corp, classified under FSC 5307 (No Item Name Available). Status: active.

What are the part numbers for NSN 5307-00-122-3457?

NSN 5307-00-122-3457 has 2 cross-referenced part numbers: LS320 (Lockheed Martin Corp), ATT50173-582 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5307-00-122-3457?

There is 1 known substitute for 5307-00-122-3457: 5985-01-109-8833. Verify interchangeability with system specifications before substitution.

What are the specifications of LS320?

Key specifications for LS320: Material: STEEL COMP 4130; Thread Direction: RIGHT-HAND STUD THREAD; Distance Across Flats: 0.375 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND NUT THREAD. 19 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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