PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STSCD005-03Nut,self-Locking,extended Washer

Lockheed Martin Corp · NSN 5310-00-460-8776 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-460-8776 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-460-8776. Primary manufacturer part number: STSCD005-03.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Lubrication: SOLUBLE LUBRICANT
  • Thread Class: 3B
  • Thread Quantity Per Inch: 32
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Hardness Rating: 45.0 ROCKWELL C NOMINAL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 or Steel Comp H11 Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-460-8776, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 17 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
NSN5310-00-460-8776
Primary Part NumberSTSCD005-03
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Thread DirectionRIGHT-HAND
LubricationSOLUBLE LUBRICANT
Thread Class3B
Thread Quantity Per Inch32
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Hardness Rating45.0 ROCKWELL C NOMINAL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationAMS6322 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 8740 OR STEEL COMP H11 OVERALL
Surface TreatmentCADMIUM OVERALL
Nominal Thread Size0.190 INCHES IN
Washer Thickness0.008 INCHES MINIMUM IN
Nut StyleDOUBLE HEXAGON
Washer Outside Diameter0.369 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Temp Rating-65.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF
Width Across Flats0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6515-01-460-8776 INTERCHANGEABLE
Implant,tissue-Patch,surgical
Cross-Reference Index
Part NumberManufacturer
STSCD005-03 Lockheed Martin Corp (USA)
55LH7896-3 Harvard Industries Inc (USA)
Related Parts
6515-01-460-8776INTERCHANGEABLE
IMPLANT,TISSUE-PATCH,SURGICAL

Frequently Asked Questions

What is NSN 5310-00-460-8776?

NSN 5310-00-460-8776 is a Nut,self-Locking,extended Washer, manufactured by Lockheed Martin Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-460-8776?

NSN 5310-00-460-8776 has 2 cross-referenced part numbers: STSCD005-03 (Lockheed Martin Corp), 55LH7896-3 (Harvard Industries Inc).

What NSN replaces 5310-00-460-8776?

There is 1 known substitute for 5310-00-460-8776: 6515-01-460-8776. Verify interchangeability with system specifications before substitution.

What are the specifications of STSCD005-03?

Key specifications for STSCD005-03: Thread Direction: RIGHT-HAND; Lubrication: SOLUBLE LUBRICANT; Thread Class: 3B; Thread Quantity Per Inch: 32. 18 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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