PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN310-8Nut,plain,castellated,hexagon

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5310-00-812-7766 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-812-7766 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-812-7766. Primary manufacturer part number: AN310-8.
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Nut Style: CASTELLATED, HEXAGON
  • Width Across Flats: 0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Departure From Cited Document: AS MODIFIED BY SPECIAL FEATURES
  • Material: STEEL OVERALL
  • Thread Series: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-812-7766, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 13 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-812-7766
Primary Part NumberAN310-8
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Nut StyleCASTELLATED, HEXAGON
Width Across Flats0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Departure From Cited DocumentAS MODIFIED BY SPECIAL FEATURES
MaterialSTEEL OVERALL
Thread SeriesUNF
Thread Quantity Per Inch20
Thread Class3B
Nut Height0.562 INCHES NOMINAL IN
Bearing Surface TypeFLAT OR WASHER FACED
Thread DirectionRIGHT-HAND
Nominal Thread Size0.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-167-1289AN310-8 INTERCHANGEABLE
Nut,plain,castellated,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4730-01-225-0754404105 INTERCHANGEABLE
Plug,piston Accum
Parker-Hannifin Corporation Div Hydraulic Accumulator Division
Cross-Reference Index
Part NumberManufacturer
AN310-8 Aeronautical Standards Group Dept of Navy and Air Force (USA)
404 105 Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA)
Related Parts
5310-00-167-1289INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
AN310-8
4730-01-225-0754INTERCHANGEABLE
PLUG,PISTON ACCUM
404105

Frequently Asked Questions

What is NSN 5310-00-812-7766?

NSN 5310-00-812-7766 is a Nut,plain,castellated,hexagon, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-812-7766?

NSN 5310-00-812-7766 has 2 cross-referenced part numbers: AN310-8 (Aeronautical Standards Group Dept of Navy and Air Force), 404 105 (Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company).

What NSN replaces 5310-00-812-7766?

There are 2 known substitutes for 5310-00-812-7766: 5310-00-167-1289, 4730-01-225-0754. Verify interchangeability with system specifications before substitution.

What are the specifications of AN310-8?

Key specifications for AN310-8: Nut Style: CASTELLATED, HEXAGON; Width Across Flats: 0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 14 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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