PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77206ADXNut,plain,extended Washer,hexago

Airdale Express Llc Div Airdale Express · NSN 5310-01-027-9530 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-027-9530 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-027-9530. Primary manufacturer part number: 77206ADX.
Features
  • Nut,plain,extended Washer,hexago — FSC 5310
  • Nut Style: HEXAGON
  • Thread Class: 2B
  • Width Across Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Quantity Per Inch: 28
  • Thread Series: UNF
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-027-9530, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Airdale Express Llc Div Airdale Express. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-027-9530
Primary Part Number77206ADX
Item NameNut,plain,extended Washer,hexago
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAirdale Express Llc Div Airdale Express
StatusACTIVE
Nut StyleHEXAGON
Thread Class2B
Width Across Flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Nominal Thread Size0.250 INCHES IN
Thread Quantity Per Inch28
Thread SeriesUNF
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Washer Outside Diameter0.574 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-144-8637015541 INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Dba Yale Materials Handling
3110-00-155-6665001-43206PP INTERCHANGEABLE
Bearing,ball,annular
Tvh Parts Co.
2940-00-529-273715 INTERCHANGEABLE
Filter Element,fluid
Naval Construction Battalion Center Civil Engineer Support Office Dba Exwc Ex24 Div Ex24 Tools
Cross-Reference Index
Part NumberManufacturer
77206ADX Airdale Express Llc Div Airdale Express (USA)
77206 Federal Screw Products, Inc. (USA)
59SFG1428 Mac Lean Fogg Lock Nut Co (USA)
29SFF1428 Mac Lean Fogg Lock Nut Co (USA)
75-0873-7 Department of Defense Project Manager-Mobile Electric Power (USA)
Related Parts
3110-00-144-8637INTERCHANGEABLE
BEARING,BALL,ANNULAR
015541
3110-00-155-6665INTERCHANGEABLE
BEARING,BALL,ANNULAR
001-43206PP
2940-00-529-2737INTERCHANGEABLE
FILTER ELEMENT,FLUID
15

Frequently Asked Questions

What is NSN 5310-01-027-9530?

NSN 5310-01-027-9530 is a Nut,plain,extended Washer,hexago, manufactured by Airdale Express Llc Div Airdale Express, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-027-9530?

NSN 5310-01-027-9530 has 5 cross-referenced part numbers: 77206ADX (Airdale Express Llc Div Airdale Express), 77206 (Federal Screw Products, Inc.), 59SFG1428 (Mac Lean Fogg Lock Nut Co), 29SFF1428 (Mac Lean Fogg Lock Nut Co), 75-0873-7 (Department of Defense Project Manager-Mobile Electric Power).

What NSN replaces 5310-01-027-9530?

There are 3 known substitutes for 5310-01-027-9530: 3110-00-144-8637, 3110-00-155-6665, 2940-00-529-2737. Verify interchangeability with system specifications before substitution.

What are the specifications of 77206ADX?

Key specifications for 77206ADX: Nut Style: HEXAGON; Thread Class: 2B; Overall Height: 0.222 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN; Width Across Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN. 12 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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