PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77019-8Nut,self-Locking,double Hexagon

Sps Technologies, Llc Dba PB Fasteners · NSN 5310-01-074-0253 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-074-0253 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-074-0253. Primary manufacturer part number: 77019-8.
Features
  • Nut,self-Locking,double Hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3B
  • Nut Style: DOUBLE HEXAGON
  • Surface Treatment: COPPER AND NICKEL THREADS
  • Thread Quantity Per Inch: 20
  • Nominal Thread Size: 0.500 INCHES IN
  • Material: NICKEL ALLOY OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy Overall construction
General Description

The Nut,self-Locking,double Hexagon, cataloged under National Stock Number 5310-01-074-0253, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 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
NSN5310-01-074-0253
Primary Part Number77019-8
Item NameNut,self-Locking,double Hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Class3B
Nut StyleDOUBLE HEXAGON
Surface TreatmentCOPPER AND NICKEL THREADS
Thread Quantity Per Inch20
Nominal Thread Size0.500 INCHES IN
MaterialNICKEL ALLOY OVERALL
Bearing Surface TypeCHAMFERED
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Specification/standard Data76301-ST3-436 MANUFACTURERS STANDARD
Material Document and ClassificationAMS5662 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5663 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Width Across Flats0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
LubricationDRY FILM LUBRICANT
Nut Height0.384 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-293-812010543685-1 INTERCHANGEABLE
Bearing,ball,annular
Level 10 Industries, Inc. Div Level 10 Industries
5950-00-830-3175 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
BH436-8 Bristol Industries, Llc (USA)
77019-8 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
SLN201-8M Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA)
ST3M436-8M Sps Technologies, Llc Dba PB Fasteners (USA)
ST3M436-8M Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA)
H49817-8 PRIMARY Howmet Global Fastening Systems Inc (USA)
7019-8 Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
ST3M436-8M Bristol Industries, Llc (USA)
ST3M436-8M Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
ST3M436-8M Howmet Global Fastening Systems Inc (USA)
LH11434B Harvard Industries Inc (USA)
ST3M436-8M PRIMARY The Boeing Company Div Defense (USA)
Related Parts
3110-00-293-8120INTERCHANGEABLE
BEARING,BALL,ANNULAR
10543685-1
5950-00-830-3175INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 5310-01-074-0253?

NSN 5310-01-074-0253 is a Nut,self-Locking,double Hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-074-0253?

NSN 5310-01-074-0253 has 12 cross-referenced part numbers: BH436-8 (Bristol Industries, Llc), 77019-8 (Sps Technologies, Llc Dba PB Fasteners), SLN201-8M (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), ST3M436-8M (Sps Technologies, Llc Dba PB Fasteners), ST3M436-8M (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok) and 7 more.

What NSN replaces 5310-01-074-0253?

There are 2 known substitutes for 5310-01-074-0253: 3110-00-293-8120, 5950-00-830-3175. Verify interchangeability with system specifications before substitution.

What are the specifications of 77019-8?

Key specifications for 77019-8: Thread Direction: RIGHT-HAND; Thread Class: 3B; Nut Style: DOUBLE HEXAGON; Surface Treatment: COPPER AND NICKEL THREADS. 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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