PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8081581Nut,self-Locking,spline

Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc · NSN 5310-00-366-3488 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-366-3488 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-366-3488. Primary manufacturer part number: 8081581.
Features
  • Nut,self-Locking,spline — FSC 5310
  • Material: STEEL COMP 1116 NUT
  • Nut Style: SPLINE
  • Material Document and Classification: SAE 1116 ASSN STD 1ST MATERIAL RESPONSE NUT
  • Surface Treatment: CADMIUM OVERALL EXCEPT INSERT
  • Thread Quantity Per Inch: 20
  • Thread Series: UNF
  • Nominal Thread Size: 0.500 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1116 Nut construction
General Description

The Nut,self-Locking,spline, cataloged under National Stock Number 5310-00-366-3488, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-366-3488
Primary Part Number8081581
Item NameNut,self-Locking,spline
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerProgress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc
StatusACTIVE
MaterialSTEEL COMP 1116 NUT
Nut StyleSPLINE
Material Document and ClassificationSAE 1116 ASSN STD 1ST MATERIAL RESPONSE NUT
Surface TreatmentCADMIUM OVERALL EXCEPT INSERT
Thread Quantity Per Inch20
Thread SeriesUNF
Nominal Thread Size0.500 INCHES IN
Nut Diameter0.875 INCHES NOMINAL IN
Thread Class3B
Thread DirectionRIGHT-HAND
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height0.938 INCHES NOMINAL IN
Pilot Diameter0.695 INCHES MINIMUM AND 0.701 INCHES MAXIMUM IN
Pilot Length0.562 INCHES NOMINAL IN
MaterialPLASTIC LOCKING INSERT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5999-00-172-8253M39029/5-115 INTERCHANGEABLE
Contact,electrical
Sae International Dba Sae International
5306-00-802-4755808158-1 INTERCHANGEABLE
Bolt,internally Relieved Body
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
8081581 PRIMARY Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA)
8081581 General Motors Corp (USA)
8081581 General Motors Corp Electro-Motive Div (USA)
Related Parts
5999-00-172-8253INTERCHANGEABLE
CONTACT,ELECTRICAL
M39029/5-115
5306-00-802-4755INTERCHANGEABLE
BOLT,INTERNALLY RELIEVED BODY
808158-1

Frequently Asked Questions

What is NSN 5310-00-366-3488?

NSN 5310-00-366-3488 is a Nut,self-Locking,spline, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-366-3488?

NSN 5310-00-366-3488 has 3 cross-referenced part numbers: 8081581 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc), 8081581 (General Motors Corp), 8081581 (General Motors Corp Electro-Motive Div).

What NSN replaces 5310-00-366-3488?

There are 2 known substitutes for 5310-00-366-3488: 5999-00-172-8253, 5306-00-802-4755. Verify interchangeability with system specifications before substitution.

What are the specifications of 8081581?

Key specifications for 8081581: Material: STEEL COMP 1116 NUT; Nut Style: SPLINE; End Item Identification: LOGISTGICS SUPPORT VESSEL; Material Document and Classification: SAE 1116 ASSN STD 1ST MATERIAL RESPONSE NUT. 16 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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