PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS577B6ANut,self-Locking,barrel

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-01-255-6579 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-255-6579 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-255-6579. Primary manufacturer part number: NAS577B6A.
Features
  • Nut,self-Locking,barrel — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Features Provided: FLOATING NUT
  • Thread Quantity Per Inch: 24
  • Nominal Thread Size: 0.375 INCHES IN
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Nut Height: 0.531 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 or Steel Comp 4340 Overall construction
General Description

The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-255-6579, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 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
NSN5310-01-255-6579
Primary Part NumberNAS577B6A
Item NameNut,self-Locking,barrel
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Features ProvidedFLOATING NUT
Thread Quantity Per Inch24
Nominal Thread Size0.375 INCHES IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Nut Height0.531 INCHES MAXIMUM IN
Nut Diameter0.681 INCHES MINIMUM AND 0.684 INCHES MAXIMUM IN
Barrel Height0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
Thread Class3B
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Specification/standard Data80205-NAS577 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Material Document and ClassificationMIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-8844,CL 1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Nut StyleFLOATING SELF-LOCKING BARREL
Nut Length0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
LubricationDRY FILM LUBRICANT
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
MaterialSTEEL COMP 8740 OR STEEL COMP 4340 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-171-8359110-9-16 INTERCHANGEABLE
Packing with Retainer
Parker Hannifin Corporation Div O-Ring Division
Cross-Reference Index
Part NumberManufacturer
NAS577B6A Apollo Aerospace (USA)
10110225 Nimikkeistokeskus Ncb Finland (FIN)
NAS577N6A Es3 Prime Logistics Group Inc Dba Es3 Plg (USA)
NAS577B6A PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NAS577B6A Howmet Global Fastening Systems Inc (USA)
LH577-064 Harvard Industries Inc (USA)
F1800-6 Howmet Global Fastening Systems Inc (USA)
F1800-6 Satair A/s (DNK)
Related Parts
5330-00-171-8359INTERCHANGEABLE
PACKING WITH RETAINER
110-9-16

Frequently Asked Questions

What is NSN 5310-01-255-6579?

NSN 5310-01-255-6579 is a Nut,self-Locking,barrel, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-255-6579?

NSN 5310-01-255-6579 has 8 cross-referenced part numbers: NAS577B6A (Apollo Aerospace), 10110225 (Nimikkeistokeskus Ncb Finland), NAS577N6A (Es3 Prime Logistics Group Inc Dba Es3 Plg), NAS577B6A (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NAS577B6A (Howmet Global Fastening Systems Inc) and 3 more.

What NSN replaces 5310-01-255-6579?

There is 1 known substitute for 5310-01-255-6579: 5330-00-171-8359. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS577B6A?

Key specifications for NAS577B6A: Thread Direction: RIGHT-HAND; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Features Provided: FLOATING NUT; Thread Quantity Per Inch: 24. 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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